Home / 13,129.31-18,133.57-9,560.23

Finding the Fourth Proportional to 13,129.31, 18,133.57 and 9,560.23

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Solution

The fourth proportional to 13,129.31, 18,133.57 and 9,560.23 is: 13,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.31 : 18,133.57 = 9,560.23 : x
  2. Step 2: Convert to fraction form
    13,129.31/18,133.57 = 9,560.23/x
  3. Step 3: Cross multiply
    13,129.31x = 18,133.57 × 9,560.23
  4. Step 4: Simplify right side
    13,129.31x = 173,361,066.54
  5. Step 5: Solve for x
    x = 173,361,066.54/13,129.31
  6. Step 6: Final answer
    x = 13,204.12

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Half scale
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Double scale
Find fourth proportional to 13,130.31, 18,134.95 and 9,561.23
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.