Home / 12,531.58-17,292.84-6,865.20

Finding the Fourth Proportional to 12,531.58, 17,292.84 and 6,865.20

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Solution

The fourth proportional to 12,531.58, 17,292.84 and 6,865.20 is: 9,473.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.58 : 17,292.84 = 6,865.20 : x
  2. Step 2: Convert to fraction form
    12,531.58/17,292.84 = 6,865.20/x
  3. Step 3: Cross multiply
    12,531.58x = 17,292.84 × 6,865.20
  4. Step 4: Simplify right side
    12,531.58x = 118,718,805.17
  5. Step 5: Solve for x
    x = 118,718,805.17/12,531.58
  6. Step 6: Final answer
    x = 9,473.57

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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.