Home / 12,504.40-17,255.36-6,915.04

Finding the Fourth Proportional to 12,504.40, 17,255.36 and 6,915.04

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Solution

The fourth proportional to 12,504.40, 17,255.36 and 6,915.04 is: 9,542.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.40 : 17,255.36 = 6,915.04 : x
  2. Step 2: Convert to fraction form
    12,504.40/17,255.36 = 6,915.04/x
  3. Step 3: Cross multiply
    12,504.40x = 17,255.36 × 6,915.04
  4. Step 4: Simplify right side
    12,504.40x = 119,321,504.61
  5. Step 5: Solve for x
    x = 119,321,504.61/12,504.40
  6. Step 6: Final answer
    x = 9,542.36

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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.