Home / 14,272.31-21,399.35-6,862.02

Finding the Fourth Proportional to 14,272.31, 21,399.35 and 6,862.02

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Solution

The fourth proportional to 14,272.31, 21,399.35 and 6,862.02 is: 10,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.31 : 21,399.35 = 6,862.02 : x
  2. Step 2: Convert to fraction form
    14,272.31/21,399.35 = 6,862.02/x
  3. Step 3: Cross multiply
    14,272.31x = 21,399.35 × 6,862.02
  4. Step 4: Simplify right side
    14,272.31x = 146,842,733.38
  5. Step 5: Solve for x
    x = 146,842,733.38/14,272.31
  6. Step 6: Final answer
    x = 10,288.65

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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.