Home / 10,983.96-15,157.29-6,446.01

Finding the Fourth Proportional to 10,983.96, 15,157.29 and 6,446.01

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Solution

The fourth proportional to 10,983.96, 15,157.29 and 6,446.01 is: 8,895.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.96 : 15,157.29 = 6,446.01 : x
  2. Step 2: Convert to fraction form
    10,983.96/15,157.29 = 6,446.01/x
  3. Step 3: Cross multiply
    10,983.96x = 15,157.29 × 6,446.01
  4. Step 4: Simplify right side
    10,983.96x = 97,704,042.91
  5. Step 5: Solve for x
    x = 97,704,042.91/10,983.96
  6. Step 6: Final answer
    x = 8,895.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.