Home / 15,627.48-21,565.89-8,553.90

Finding the Fourth Proportional to 15,627.48, 21,565.89 and 8,553.90

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Solution

The fourth proportional to 15,627.48, 21,565.89 and 8,553.90 is: 11,804.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.48 : 21,565.89 = 8,553.90 : x
  2. Step 2: Convert to fraction form
    15,627.48/21,565.89 = 8,553.90/x
  3. Step 3: Cross multiply
    15,627.48x = 21,565.89 × 8,553.90
  4. Step 4: Simplify right side
    15,627.48x = 184,472,466.47
  5. Step 5: Solve for x
    x = 184,472,466.47/15,627.48
  6. Step 6: Final answer
    x = 11,804.36

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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.