Home / 10,318.20-15,479.91-4,775.53

Finding the Fourth Proportional to 10,318.20, 15,479.91 and 4,775.53

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Solution

The fourth proportional to 10,318.20, 15,479.91 and 4,775.53 is: 7,164.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.20 : 15,479.91 = 4,775.53 : x
  2. Step 2: Convert to fraction form
    10,318.20/15,479.91 = 4,775.53/x
  3. Step 3: Cross multiply
    10,318.20x = 15,479.91 × 4,775.53
  4. Step 4: Simplify right side
    10,318.20x = 73,924,774.60
  5. Step 5: Solve for x
    x = 73,924,774.60/10,318.20
  6. Step 6: Final answer
    x = 7,164.51

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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.