Home / 10,281.10-15,419.34-4,729.11

Finding the Fourth Proportional to 10,281.10, 15,419.34 and 4,729.11

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Solution

The fourth proportional to 10,281.10, 15,419.34 and 4,729.11 is: 7,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.10 : 15,419.34 = 4,729.11 : x
  2. Step 2: Convert to fraction form
    10,281.10/15,419.34 = 4,729.11/x
  3. Step 3: Cross multiply
    10,281.10x = 15,419.34 × 4,729.11
  4. Step 4: Simplify right side
    10,281.10x = 72,919,697.16
  5. Step 5: Solve for x
    x = 72,919,697.16/10,281.10
  6. Step 6: Final answer
    x = 7,092.60

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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.