Home / 15,561.62-21,475.32-8,488.29

Finding the Fourth Proportional to 15,561.62, 21,475.32 and 8,488.29

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Solution

The fourth proportional to 15,561.62, 21,475.32 and 8,488.29 is: 11,714.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.62 : 21,475.32 = 8,488.29 : x
  2. Step 2: Convert to fraction form
    15,561.62/21,475.32 = 8,488.29/x
  3. Step 3: Cross multiply
    15,561.62x = 21,475.32 × 8,488.29
  4. Step 4: Simplify right side
    15,561.62x = 182,288,744.00
  5. Step 5: Solve for x
    x = 182,288,744.00/15,561.62
  6. Step 6: Final answer
    x = 11,714.00

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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.