Home / 14,311.15-21,470.15-5,986.55

Finding the Fourth Proportional to 14,311.15, 21,470.15 and 5,986.55

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Solution

The fourth proportional to 14,311.15, 21,470.15 and 5,986.55 is: 8,981.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.15 : 21,470.15 = 5,986.55 : x
  2. Step 2: Convert to fraction form
    14,311.15/21,470.15 = 5,986.55/x
  3. Step 3: Cross multiply
    14,311.15x = 21,470.15 × 5,986.55
  4. Step 4: Simplify right side
    14,311.15x = 128,532,195.12
  5. Step 5: Solve for x
    x = 128,532,195.12/14,311.15
  6. Step 6: Final answer
    x = 8,981.26

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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.