Home / 9,729.57-14,572.45-6,820.86

Finding the Fourth Proportional to 9,729.57, 14,572.45 and 6,820.86

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Solution

The fourth proportional to 9,729.57, 14,572.45 and 6,820.86 is: 10,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.57 : 14,572.45 = 6,820.86 : x
  2. Step 2: Convert to fraction form
    9,729.57/14,572.45 = 6,820.86/x
  3. Step 3: Cross multiply
    9,729.57x = 14,572.45 × 6,820.86
  4. Step 4: Simplify right side
    9,729.57x = 99,396,641.31
  5. Step 5: Solve for x
    x = 99,396,641.31/9,729.57
  6. Step 6: Final answer
    x = 10,215.93

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1.5x scale

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.