Home / 15,332.18-21,162.13-9,368.87

Finding the Fourth Proportional to 15,332.18, 21,162.13 and 9,368.87

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Solution

The fourth proportional to 15,332.18, 21,162.13 and 9,368.87 is: 12,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.18 : 21,162.13 = 9,368.87 : x
  2. Step 2: Convert to fraction form
    15,332.18/21,162.13 = 9,368.87/x
  3. Step 3: Cross multiply
    15,332.18x = 21,162.13 × 9,368.87
  4. Step 4: Simplify right side
    15,332.18x = 198,265,115.66
  5. Step 5: Solve for x
    x = 198,265,115.66/15,332.18
  6. Step 6: Final answer
    x = 12,931.31

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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.