Home / 10,500.81-15,743.49-4,951.02

Finding the Fourth Proportional to 10,500.81, 15,743.49 and 4,951.02

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Solution

The fourth proportional to 10,500.81, 15,743.49 and 4,951.02 is: 7,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.81 : 15,743.49 = 4,951.02 : x
  2. Step 2: Convert to fraction form
    10,500.81/15,743.49 = 4,951.02/x
  3. Step 3: Cross multiply
    10,500.81x = 15,743.49 × 4,951.02
  4. Step 4: Simplify right side
    10,500.81x = 77,946,333.86
  5. Step 5: Solve for x
    x = 77,946,333.86/10,500.81
  6. Step 6: Final answer
    x = 7,422.89

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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.