Home / 9,320.49-13,985.49-5,159.70

Finding the Fourth Proportional to 9,320.49, 13,985.49 and 5,159.70

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Solution

The fourth proportional to 9,320.49, 13,985.49 and 5,159.70 is: 7,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.49 : 13,985.49 = 5,159.70 : x
  2. Step 2: Convert to fraction form
    9,320.49/13,985.49 = 5,159.70/x
  3. Step 3: Cross multiply
    9,320.49x = 13,985.49 × 5,159.70
  4. Step 4: Simplify right side
    9,320.49x = 72,160,932.75
  5. Step 5: Solve for x
    x = 72,160,932.75/9,320.49
  6. Step 6: Final answer
    x = 7,742.18

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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.