Home / 7,963.40-10,998.75-5,306.18

Finding the Fourth Proportional to 7,963.40, 10,998.75 and 5,306.18

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Solution

The fourth proportional to 7,963.40, 10,998.75 and 5,306.18 is: 7,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,963.40 : 10,998.75 = 5,306.18 : x
  2. Step 2: Convert to fraction form
    7,963.40/10,998.75 = 5,306.18/x
  3. Step 3: Cross multiply
    7,963.40x = 10,998.75 × 5,306.18
  4. Step 4: Simplify right side
    7,963.40x = 58,361,347.28
  5. Step 5: Solve for x
    x = 58,361,347.28/7,963.40
  6. Step 6: Final answer
    x = 7,328.70

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1.5x scale

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.