Home / 12,585.48-18,876.92-4,265.28

Finding the Fourth Proportional to 12,585.48, 18,876.92 and 4,265.28

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Solution

The fourth proportional to 12,585.48, 18,876.92 and 4,265.28 is: 6,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.48 : 18,876.92 = 4,265.28 : x
  2. Step 2: Convert to fraction form
    12,585.48/18,876.92 = 4,265.28/x
  3. Step 3: Cross multiply
    12,585.48x = 18,876.92 × 4,265.28
  4. Step 4: Simplify right side
    12,585.48x = 80,515,328.01
  5. Step 5: Solve for x
    x = 80,515,328.01/12,585.48
  6. Step 6: Final answer
    x = 6,397.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.