Home / 13,552.63-18,700.17-7,809.19

Finding the Fourth Proportional to 13,552.63, 18,700.17 and 7,809.19

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Solution

The fourth proportional to 13,552.63, 18,700.17 and 7,809.19 is: 10,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.63 : 18,700.17 = 7,809.19 : x
  2. Step 2: Convert to fraction form
    13,552.63/18,700.17 = 7,809.19/x
  3. Step 3: Cross multiply
    13,552.63x = 18,700.17 × 7,809.19
  4. Step 4: Simplify right side
    13,552.63x = 146,033,104.53
  5. Step 5: Solve for x
    x = 146,033,104.53/13,552.63
  6. Step 6: Final answer
    x = 10,775.26

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Half scale
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Double scale
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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.