Home / 15,919.56-23,874.35-5,387.63

Finding the Fourth Proportional to 15,919.56, 23,874.35 and 5,387.63

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Solution

The fourth proportional to 15,919.56, 23,874.35 and 5,387.63 is: 8,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.56 : 23,874.35 = 5,387.63 : x
  2. Step 2: Convert to fraction form
    15,919.56/23,874.35 = 5,387.63/x
  3. Step 3: Cross multiply
    15,919.56x = 23,874.35 × 5,387.63
  4. Step 4: Simplify right side
    15,919.56x = 128,626,017.98
  5. Step 5: Solve for x
    x = 128,626,017.98/15,919.56
  6. Step 6: Final answer
    x = 8,079.75

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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.