Home / 15,332.16-21,160.36-9,362.56

Finding the Fourth Proportional to 15,332.16, 21,160.36 and 9,362.56

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Solution

The fourth proportional to 15,332.16, 21,160.36 and 9,362.56 is: 12,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.16 : 21,160.36 = 9,362.56 : x
  2. Step 2: Convert to fraction form
    15,332.16/21,160.36 = 9,362.56/x
  3. Step 3: Cross multiply
    15,332.16x = 21,160.36 × 9,362.56
  4. Step 4: Simplify right side
    15,332.16x = 198,115,140.12
  5. Step 5: Solve for x
    x = 198,115,140.12/15,332.16
  6. Step 6: Final answer
    x = 12,921.54

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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.