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Finding the Fourth Proportional to 10,847.70, 16,235.10 and 9,972.90

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Solution

The fourth proportional to 10,847.70, 16,235.10 and 9,972.90 is: 14,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,847.70 : 16,235.10 = 9,972.90 : x
  2. Step 2: Convert to fraction form
    10,847.70/16,235.10 = 9,972.90/x
  3. Step 3: Cross multiply
    10,847.70x = 16,235.10 × 9,972.90
  4. Step 4: Simplify right side
    10,847.70x = 161,911,028.79
  5. Step 5: Solve for x
    x = 161,911,028.79/10,847.70
  6. Step 6: Final answer
    x = 14,925.84

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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.