Home / 15,090.22-22,657.55-8,439.74

Finding the Fourth Proportional to 15,090.22, 22,657.55 and 8,439.74

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Solution

The fourth proportional to 15,090.22, 22,657.55 and 8,439.74 is: 12,672.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.22 : 22,657.55 = 8,439.74 : x
  2. Step 2: Convert to fraction form
    15,090.22/22,657.55 = 8,439.74/x
  3. Step 3: Cross multiply
    15,090.22x = 22,657.55 × 8,439.74
  4. Step 4: Simplify right side
    15,090.22x = 191,223,887.97
  5. Step 5: Solve for x
    x = 191,223,887.97/15,090.22
  6. Step 6: Final answer
    x = 12,672.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.