Home / 14,079.24-21,115.17-4,215.87

Finding the Fourth Proportional to 14,079.24, 21,115.17 and 4,215.87

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Solution

The fourth proportional to 14,079.24, 21,115.17 and 4,215.87 is: 6,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.24 : 21,115.17 = 4,215.87 : x
  2. Step 2: Convert to fraction form
    14,079.24/21,115.17 = 4,215.87/x
  3. Step 3: Cross multiply
    14,079.24x = 21,115.17 × 4,215.87
  4. Step 4: Simplify right side
    14,079.24x = 89,018,811.75
  5. Step 5: Solve for x
    x = 89,018,811.75/14,079.24
  6. Step 6: Final answer
    x = 6,322.70

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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.