Home / 14,143.68-21,215.04-4,282.88

Finding the Fourth Proportional to 14,143.68, 21,215.04 and 4,282.88

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Solution

The fourth proportional to 14,143.68, 21,215.04 and 4,282.88 is: 6,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,143.68 : 21,215.04 = 4,282.88 : x
  2. Step 2: Convert to fraction form
    14,143.68/21,215.04 = 4,282.88/x
  3. Step 3: Cross multiply
    14,143.68x = 21,215.04 × 4,282.88
  4. Step 4: Simplify right side
    14,143.68x = 90,861,470.52
  5. Step 5: Solve for x
    x = 90,861,470.52/14,143.68
  6. Step 6: Final answer
    x = 6,424.17

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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.