Home / 14,298.88-21,428.80-8,061.92

Finding the Fourth Proportional to 14,298.88, 21,428.80 and 8,061.92

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Solution

The fourth proportional to 14,298.88, 21,428.80 and 8,061.92 is: 12,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,298.88 : 21,428.80 = 8,061.92 : x
  2. Step 2: Convert to fraction form
    14,298.88/21,428.80 = 8,061.92/x
  3. Step 3: Cross multiply
    14,298.88x = 21,428.80 × 8,061.92
  4. Step 4: Simplify right side
    14,298.88x = 172,757,271.30
  5. Step 5: Solve for x
    x = 172,757,271.30/14,298.88
  6. Step 6: Final answer
    x = 12,081.87

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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.