Home / 10,122.16-15,181.80-4,581.76

Finding the Fourth Proportional to 10,122.16, 15,181.80 and 4,581.76

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Solution

The fourth proportional to 10,122.16, 15,181.80 and 4,581.76 is: 6,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.16 : 15,181.80 = 4,581.76 : x
  2. Step 2: Convert to fraction form
    10,122.16/15,181.80 = 4,581.76/x
  3. Step 3: Cross multiply
    10,122.16x = 15,181.80 × 4,581.76
  4. Step 4: Simplify right side
    10,122.16x = 69,559,363.97
  5. Step 5: Solve for x
    x = 69,559,363.97/10,122.16
  6. Step 6: Final answer
    x = 6,871.99

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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.