Home / 9,630.80-13,289.16-5,381.68

Finding the Fourth Proportional to 9,630.80, 13,289.16 and 5,381.68

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Solution

The fourth proportional to 9,630.80, 13,289.16 and 5,381.68 is: 7,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,630.80 : 13,289.16 = 5,381.68 : x
  2. Step 2: Convert to fraction form
    9,630.80/13,289.16 = 5,381.68/x
  3. Step 3: Cross multiply
    9,630.80x = 13,289.16 × 5,381.68
  4. Step 4: Simplify right side
    9,630.80x = 71,518,006.59
  5. Step 5: Solve for x
    x = 71,518,006.59/9,630.80
  6. Step 6: Final answer
    x = 7,425.97

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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.