Home / 10,587.20-15,880.94-4,342.88

Finding the Fourth Proportional to 10,587.20, 15,880.94 and 4,342.88

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Solution

The fourth proportional to 10,587.20, 15,880.94 and 4,342.88 is: 6,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,587.20 : 15,880.94 = 4,342.88 : x
  2. Step 2: Convert to fraction form
    10,587.20/15,880.94 = 4,342.88/x
  3. Step 3: Cross multiply
    10,587.20x = 15,880.94 × 4,342.88
  4. Step 4: Simplify right side
    10,587.20x = 68,969,016.71
  5. Step 5: Solve for x
    x = 68,969,016.71/10,587.20
  6. Step 6: Final answer
    x = 6,514.38

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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.