Home / 12,505.27-17,254.88-7,127.60

Finding the Fourth Proportional to 12,505.27, 17,254.88 and 7,127.60

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Solution

The fourth proportional to 12,505.27, 17,254.88 and 7,127.60 is: 9,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.27 : 17,254.88 = 7,127.60 : x
  2. Step 2: Convert to fraction form
    12,505.27/17,254.88 = 7,127.60/x
  3. Step 3: Cross multiply
    12,505.27x = 17,254.88 × 7,127.60
  4. Step 4: Simplify right side
    12,505.27x = 122,985,973.18
  5. Step 5: Solve for x
    x = 122,985,973.18/12,505.27
  6. Step 6: Final answer
    x = 9,834.73

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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.