Home / 9,819.60-14,742.90-6,331.20

Finding the Fourth Proportional to 9,819.60, 14,742.90 and 6,331.20

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Solution

The fourth proportional to 9,819.60, 14,742.90 and 6,331.20 is: 9,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.60 : 14,742.90 = 6,331.20 : x
  2. Step 2: Convert to fraction form
    9,819.60/14,742.90 = 6,331.20/x
  3. Step 3: Cross multiply
    9,819.60x = 14,742.90 × 6,331.20
  4. Step 4: Simplify right side
    9,819.60x = 93,340,248.48
  5. Step 5: Solve for x
    x = 93,340,248.48/9,819.60
  6. Step 6: Final answer
    x = 9,505.50

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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.