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Finding the Fourth Proportional to 10,101.02, 15,143.95 and 6,972.09

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Solution

The fourth proportional to 10,101.02, 15,143.95 and 6,972.09 is: 10,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,101.02 : 15,143.95 = 6,972.09 : x
  2. Step 2: Convert to fraction form
    10,101.02/15,143.95 = 6,972.09/x
  3. Step 3: Cross multiply
    10,101.02x = 15,143.95 × 6,972.09
  4. Step 4: Simplify right side
    10,101.02x = 105,584,982.36
  5. Step 5: Solve for x
    x = 105,584,982.36/10,101.02
  6. Step 6: Final answer
    x = 10,452.90

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1.5x scale

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.