Home / 9,690.24-13,372.32-5,657.76

Finding the Fourth Proportional to 9,690.24, 13,372.32 and 5,657.76

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Solution

The fourth proportional to 9,690.24, 13,372.32 and 5,657.76 is: 7,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.24 : 13,372.32 = 5,657.76 : x
  2. Step 2: Convert to fraction form
    9,690.24/13,372.32 = 5,657.76/x
  3. Step 3: Cross multiply
    9,690.24x = 13,372.32 × 5,657.76
  4. Step 4: Simplify right side
    9,690.24x = 75,657,377.20
  5. Step 5: Solve for x
    x = 75,657,377.20/9,690.24
  6. Step 6: Final answer
    x = 7,807.59

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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.