Home / 12,531.40-17,292.90-7,225.48

Finding the Fourth Proportional to 12,531.40, 17,292.90 and 7,225.48

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Solution

The fourth proportional to 12,531.40, 17,292.90 and 7,225.48 is: 9,970.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.40 : 17,292.90 = 7,225.48 : x
  2. Step 2: Convert to fraction form
    12,531.40/17,292.90 = 7,225.48/x
  3. Step 3: Cross multiply
    12,531.40x = 17,292.90 × 7,225.48
  4. Step 4: Simplify right side
    12,531.40x = 124,949,503.09
  5. Step 5: Solve for x
    x = 124,949,503.09/12,531.40
  6. Step 6: Final answer
    x = 9,970.91

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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.