Home / 15,627.40-21,565.68-8,553.92

Finding the Fourth Proportional to 15,627.40, 21,565.68 and 8,553.92

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Solution

The fourth proportional to 15,627.40, 21,565.68 and 8,553.92 is: 11,804.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.40 : 21,565.68 = 8,553.92 : x
  2. Step 2: Convert to fraction form
    15,627.40/21,565.68 = 8,553.92/x
  3. Step 3: Cross multiply
    15,627.40x = 21,565.68 × 8,553.92
  4. Step 4: Simplify right side
    15,627.40x = 184,471,101.47
  5. Step 5: Solve for x
    x = 184,471,101.47/15,627.40
  6. Step 6: Final answer
    x = 11,804.34

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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.