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Finding the Fourth Proportional to 10,043.70, 15,070.95 and 4,200.90

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Solution

The fourth proportional to 10,043.70, 15,070.95 and 4,200.90 is: 6,303.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,043.70 : 15,070.95 = 4,200.90 : x
  2. Step 2: Convert to fraction form
    10,043.70/15,070.95 = 4,200.90/x
  3. Step 3: Cross multiply
    10,043.70x = 15,070.95 × 4,200.90
  4. Step 4: Simplify right side
    10,043.70x = 63,311,553.86
  5. Step 5: Solve for x
    x = 63,311,553.86/10,043.70
  6. Step 6: Final answer
    x = 6,303.61

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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.