Home / 10,478.53-15,704.42-4,919.60

Finding the Fourth Proportional to 10,478.53, 15,704.42 and 4,919.60

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Solution

The fourth proportional to 10,478.53, 15,704.42 and 4,919.60 is: 7,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.53 : 15,704.42 = 4,919.60 : x
  2. Step 2: Convert to fraction form
    10,478.53/15,704.42 = 4,919.60/x
  3. Step 3: Cross multiply
    10,478.53x = 15,704.42 × 4,919.60
  4. Step 4: Simplify right side
    10,478.53x = 77,259,437.67
  5. Step 5: Solve for x
    x = 77,259,437.67/10,478.53
  6. Step 6: Final answer
    x = 7,373.12

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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.