Home / 15,498.48-21,385.44-9,125.40

Finding the Fourth Proportional to 15,498.48, 21,385.44 and 9,125.40

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Solution

The fourth proportional to 15,498.48, 21,385.44 and 9,125.40 is: 12,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.48 : 21,385.44 = 9,125.40 : x
  2. Step 2: Convert to fraction form
    15,498.48/21,385.44 = 9,125.40/x
  3. Step 3: Cross multiply
    15,498.48x = 21,385.44 × 9,125.40
  4. Step 4: Simplify right side
    15,498.48x = 195,150,694.18
  5. Step 5: Solve for x
    x = 195,150,694.18/15,498.48
  6. Step 6: Final answer
    x = 12,591.60

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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.