Home / 12,861.57-17,731.95-9,273.53

Finding the Fourth Proportional to 12,861.57, 17,731.95 and 9,273.53

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Solution

The fourth proportional to 12,861.57, 17,731.95 and 9,273.53 is: 12,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.57 : 17,731.95 = 9,273.53 : x
  2. Step 2: Convert to fraction form
    12,861.57/17,731.95 = 9,273.53/x
  3. Step 3: Cross multiply
    12,861.57x = 17,731.95 × 9,273.53
  4. Step 4: Simplify right side
    12,861.57x = 164,437,681.62
  5. Step 5: Solve for x
    x = 164,437,681.62/12,861.57
  6. Step 6: Final answer
    x = 12,785.20

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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.