Home / 15,455.58-21,332.07-9,490.38

Finding the Fourth Proportional to 15,455.58, 21,332.07 and 9,490.38

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Solution

The fourth proportional to 15,455.58, 21,332.07 and 9,490.38 is: 13,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.58 : 21,332.07 = 9,490.38 : x
  2. Step 2: Convert to fraction form
    15,455.58/21,332.07 = 9,490.38/x
  3. Step 3: Cross multiply
    15,455.58x = 21,332.07 × 9,490.38
  4. Step 4: Simplify right side
    15,455.58x = 202,449,450.49
  5. Step 5: Solve for x
    x = 202,449,450.49/15,455.58
  6. Step 6: Final answer
    x = 13,098.79

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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.