Home / 18,005.12-24,846.90-9,938.86

Finding the Fourth Proportional to 18,005.12, 24,846.90 and 9,938.86

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Solution

The fourth proportional to 18,005.12, 24,846.90 and 9,938.86 is: 13,715.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,005.12 : 24,846.90 = 9,938.86 : x
  2. Step 2: Convert to fraction form
    18,005.12/24,846.90 = 9,938.86/x
  3. Step 3: Cross multiply
    18,005.12x = 24,846.90 × 9,938.86
  4. Step 4: Simplify right side
    18,005.12x = 246,949,860.53
  5. Step 5: Solve for x
    x = 246,949,860.53/18,005.12
  6. Step 6: Final answer
    x = 13,715.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.