Home / 15,490.11-21,377.33-8,773.18

Finding the Fourth Proportional to 15,490.11, 21,377.33 and 8,773.18

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Solution

The fourth proportional to 15,490.11, 21,377.33 and 8,773.18 is: 12,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,490.11 : 21,377.33 = 8,773.18 : x
  2. Step 2: Convert to fraction form
    15,490.11/21,377.33 = 8,773.18/x
  3. Step 3: Cross multiply
    15,490.11x = 21,377.33 × 8,773.18
  4. Step 4: Simplify right side
    15,490.11x = 187,547,164.01
  5. Step 5: Solve for x
    x = 187,547,164.01/15,490.11
  6. Step 6: Final answer
    x = 12,107.54

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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.