Home / 16,490.79-22,757.13-9,417.20

Finding the Fourth Proportional to 16,490.79, 22,757.13 and 9,417.20

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Solution

The fourth proportional to 16,490.79, 22,757.13 and 9,417.20 is: 12,995.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.79 : 22,757.13 = 9,417.20 : x
  2. Step 2: Convert to fraction form
    16,490.79/22,757.13 = 9,417.20/x
  3. Step 3: Cross multiply
    16,490.79x = 22,757.13 × 9,417.20
  4. Step 4: Simplify right side
    16,490.79x = 214,308,330.85
  5. Step 5: Solve for x
    x = 214,308,330.85/16,490.79
  6. Step 6: Final answer
    x = 12,995.64

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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.