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Finding the Fourth Proportional to 43,671.86, 65,507.58 and 12,507.14

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Solution

The fourth proportional to 43,671.86, 65,507.58 and 12,507.14 is: 18,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,671.86 : 65,507.58 = 12,507.14 : x
  2. Step 2: Convert to fraction form
    43,671.86/65,507.58 = 12,507.14/x
  3. Step 3: Cross multiply
    43,671.86x = 65,507.58 × 12,507.14
  4. Step 4: Simplify right side
    43,671.86x = 819,312,474.12
  5. Step 5: Solve for x
    x = 819,312,474.12/43,671.86
  6. Step 6: Final answer
    x = 18,760.65

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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.