Home / 15,627.09-21,565.40-8,553.52

Finding the Fourth Proportional to 15,627.09, 21,565.40 and 8,553.52

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Solution

The fourth proportional to 15,627.09, 21,565.40 and 8,553.52 is: 11,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.09 : 21,565.40 = 8,553.52 : x
  2. Step 2: Convert to fraction form
    15,627.09/21,565.40 = 8,553.52/x
  3. Step 3: Cross multiply
    15,627.09x = 21,565.40 × 8,553.52
  4. Step 4: Simplify right side
    15,627.09x = 184,460,064.40
  5. Step 5: Solve for x
    x = 184,460,064.40/15,627.09
  6. Step 6: Final answer
    x = 11,803.86

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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.