Home / 14,697.55-20,279.45-8,731.22

Finding the Fourth Proportional to 14,697.55, 20,279.45 and 8,731.22

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Solution

The fourth proportional to 14,697.55, 20,279.45 and 8,731.22 is: 12,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,697.55 : 20,279.45 = 8,731.22 : x
  2. Step 2: Convert to fraction form
    14,697.55/20,279.45 = 8,731.22/x
  3. Step 3: Cross multiply
    14,697.55x = 20,279.45 × 8,731.22
  4. Step 4: Simplify right side
    14,697.55x = 177,064,295.77
  5. Step 5: Solve for x
    x = 177,064,295.77/14,697.55
  6. Step 6: Final answer
    x = 12,047.20

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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.