Home / 14,301.28-21,462-6,405.76

Finding the Fourth Proportional to 14,301.28, 21,462 and 6,405.76

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Solution

The fourth proportional to 14,301.28, 21,462 and 6,405.76 is: 9,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,301.28 : 21,462 = 6,405.76 : x
  2. Step 2: Convert to fraction form
    14,301.28/21,462 = 6,405.76/x
  3. Step 3: Cross multiply
    14,301.28x = 21,462 × 6,405.76
  4. Step 4: Simplify right side
    14,301.28x = 137,480,421.12
  5. Step 5: Solve for x
    x = 137,480,421.12/14,301.28
  6. Step 6: Final answer
    x = 9,613.15

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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.