Home / 15,123.40-22,695.90-8,542.60

Finding the Fourth Proportional to 15,123.40, 22,695.90 and 8,542.60

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Solution

The fourth proportional to 15,123.40, 22,695.90 and 8,542.60 is: 12,820.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.40 : 22,695.90 = 8,542.60 : x
  2. Step 2: Convert to fraction form
    15,123.40/22,695.90 = 8,542.60/x
  3. Step 3: Cross multiply
    15,123.40x = 22,695.90 × 8,542.60
  4. Step 4: Simplify right side
    15,123.40x = 193,881,995.34
  5. Step 5: Solve for x
    x = 193,881,995.34/15,123.40
  6. Step 6: Final answer
    x = 12,820.00

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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.