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Finding the Fourth Proportional to 10,059.60, 15,101.55 and 9,986.70

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Solution

The fourth proportional to 10,059.60, 15,101.55 and 9,986.70 is: 14,992.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,059.60 : 15,101.55 = 9,986.70 : x
  2. Step 2: Convert to fraction form
    10,059.60/15,101.55 = 9,986.70/x
  3. Step 3: Cross multiply
    10,059.60x = 15,101.55 × 9,986.70
  4. Step 4: Simplify right side
    10,059.60x = 150,814,649.39
  5. Step 5: Solve for x
    x = 150,814,649.39/10,059.60
  6. Step 6: Final answer
    x = 14,992.11

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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.