Home / 10,153.76-15,231.92-3,913.60

Finding the Fourth Proportional to 10,153.76, 15,231.92 and 3,913.60

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Solution

The fourth proportional to 10,153.76, 15,231.92 and 3,913.60 is: 5,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.76 : 15,231.92 = 3,913.60 : x
  2. Step 2: Convert to fraction form
    10,153.76/15,231.92 = 3,913.60/x
  3. Step 3: Cross multiply
    10,153.76x = 15,231.92 × 3,913.60
  4. Step 4: Simplify right side
    10,153.76x = 59,611,642.11
  5. Step 5: Solve for x
    x = 59,611,642.11/10,153.76
  6. Step 6: Final answer
    x = 5,870.89

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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.