Home / 15,638.56-21,581.22-8,565.04

Finding the Fourth Proportional to 15,638.56, 21,581.22 and 8,565.04

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Solution

The fourth proportional to 15,638.56, 21,581.22 and 8,565.04 is: 11,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.56 : 21,581.22 = 8,565.04 : x
  2. Step 2: Convert to fraction form
    15,638.56/21,581.22 = 8,565.04/x
  3. Step 3: Cross multiply
    15,638.56x = 21,581.22 × 8,565.04
  4. Step 4: Simplify right side
    15,638.56x = 184,844,012.55
  5. Step 5: Solve for x
    x = 184,844,012.55/15,638.56
  6. Step 6: Final answer
    x = 11,819.76

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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.