Home / 10,983.88-15,157.16-6,508.05

Finding the Fourth Proportional to 10,983.88, 15,157.16 and 6,508.05

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Solution

The fourth proportional to 10,983.88, 15,157.16 and 6,508.05 is: 8,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.88 : 15,157.16 = 6,508.05 : x
  2. Step 2: Convert to fraction form
    10,983.88/15,157.16 = 6,508.05/x
  3. Step 3: Cross multiply
    10,983.88x = 15,157.16 × 6,508.05
  4. Step 4: Simplify right side
    10,983.88x = 98,643,446.81
  5. Step 5: Solve for x
    x = 98,643,446.81/10,983.88
  6. Step 6: Final answer
    x = 8,980.75

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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.