Home / 10,285.96-15,428.99-3,170.11

Finding the Fourth Proportional to 10,285.96, 15,428.99 and 3,170.11

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Solution

The fourth proportional to 10,285.96, 15,428.99 and 3,170.11 is: 4,755.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.96 : 15,428.99 = 3,170.11 : x
  2. Step 2: Convert to fraction form
    10,285.96/15,428.99 = 3,170.11/x
  3. Step 3: Cross multiply
    10,285.96x = 15,428.99 × 3,170.11
  4. Step 4: Simplify right side
    10,285.96x = 48,911,595.49
  5. Step 5: Solve for x
    x = 48,911,595.49/10,285.96
  6. Step 6: Final answer
    x = 4,755.18

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Double scale
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Similar ratio
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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.