Home / 10,302.60-15,432.30-5,680.20

Finding the Fourth Proportional to 10,302.60, 15,432.30 and 5,680.20

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Solution

The fourth proportional to 10,302.60, 15,432.30 and 5,680.20 is: 8,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,302.60 : 15,432.30 = 5,680.20 : x
  2. Step 2: Convert to fraction form
    10,302.60/15,432.30 = 5,680.20/x
  3. Step 3: Cross multiply
    10,302.60x = 15,432.30 × 5,680.20
  4. Step 4: Simplify right side
    10,302.60x = 87,658,550.46
  5. Step 5: Solve for x
    x = 87,658,550.46/10,302.60
  6. Step 6: Final answer
    x = 8,508.39

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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.