Home / 14,079.87-21,152.61-8,240.58

Finding the Fourth Proportional to 14,079.87, 21,152.61 and 8,240.58

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Solution

The fourth proportional to 14,079.87, 21,152.61 and 8,240.58 is: 12,380.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.87 : 21,152.61 = 8,240.58 : x
  2. Step 2: Convert to fraction form
    14,079.87/21,152.61 = 8,240.58/x
  3. Step 3: Cross multiply
    14,079.87x = 21,152.61 × 8,240.58
  4. Step 4: Simplify right side
    14,079.87x = 174,309,774.91
  5. Step 5: Solve for x
    x = 174,309,774.91/14,079.87
  6. Step 6: Final answer
    x = 12,380.07

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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.