Home / 10,122.32-15,186.72-4,579.76

Finding the Fourth Proportional to 10,122.32, 15,186.72 and 4,579.76

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Solution

The fourth proportional to 10,122.32, 15,186.72 and 4,579.76 is: 6,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.32 : 15,186.72 = 4,579.76 : x
  2. Step 2: Convert to fraction form
    10,122.32/15,186.72 = 4,579.76/x
  3. Step 3: Cross multiply
    10,122.32x = 15,186.72 × 4,579.76
  4. Step 4: Simplify right side
    10,122.32x = 69,551,532.79
  5. Step 5: Solve for x
    x = 69,551,532.79/10,122.32
  6. Step 6: Final answer
    x = 6,871.11

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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.