Home / 10,721.88-16,070.36-6,343.02

Finding the Fourth Proportional to 10,721.88, 16,070.36 and 6,343.02

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Solution

The fourth proportional to 10,721.88, 16,070.36 and 6,343.02 is: 9,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.88 : 16,070.36 = 6,343.02 : x
  2. Step 2: Convert to fraction form
    10,721.88/16,070.36 = 6,343.02/x
  3. Step 3: Cross multiply
    10,721.88x = 16,070.36 × 6,343.02
  4. Step 4: Simplify right side
    10,721.88x = 101,934,614.89
  5. Step 5: Solve for x
    x = 101,934,614.89/10,721.88
  6. Step 6: Final answer
    x = 9,507.16

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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.