Home / 15,878.16-23,817.44-4,191.28

Finding the Fourth Proportional to 15,878.16, 23,817.44 and 4,191.28

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Solution

The fourth proportional to 15,878.16, 23,817.44 and 4,191.28 is: 6,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.16 : 23,817.44 = 4,191.28 : x
  2. Step 2: Convert to fraction form
    15,878.16/23,817.44 = 4,191.28/x
  3. Step 3: Cross multiply
    15,878.16x = 23,817.44 × 4,191.28
  4. Step 4: Simplify right side
    15,878.16x = 99,825,510.86
  5. Step 5: Solve for x
    x = 99,825,510.86/15,878.16
  6. Step 6: Final answer
    x = 6,286.97

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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.