Home / 16,530.72-24,803.40-6,689.28

Finding the Fourth Proportional to 16,530.72, 24,803.40 and 6,689.28

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Solution

The fourth proportional to 16,530.72, 24,803.40 and 6,689.28 is: 10,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.72 : 24,803.40 = 6,689.28 : x
  2. Step 2: Convert to fraction form
    16,530.72/24,803.40 = 6,689.28/x
  3. Step 3: Cross multiply
    16,530.72x = 24,803.40 × 6,689.28
  4. Step 4: Simplify right side
    16,530.72x = 165,916,887.55
  5. Step 5: Solve for x
    x = 165,916,887.55/16,530.72
  6. Step 6: Final answer
    x = 10,036.88

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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.