Home / 13,223.13-18,231.32-9,680.19

Finding the Fourth Proportional to 13,223.13, 18,231.32 and 9,680.19

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Solution

The fourth proportional to 13,223.13, 18,231.32 and 9,680.19 is: 13,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,223.13 : 18,231.32 = 9,680.19 : x
  2. Step 2: Convert to fraction form
    13,223.13/18,231.32 = 9,680.19/x
  3. Step 3: Cross multiply
    13,223.13x = 18,231.32 × 9,680.19
  4. Step 4: Simplify right side
    13,223.13x = 176,482,593.15
  5. Step 5: Solve for x
    x = 176,482,593.15/13,223.13
  6. Step 6: Final answer
    x = 13,346.51

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Half scale
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Double scale
Find fourth proportional to 13,224.13, 18,232.69 and 9,681.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.