Home / 9,820.80-14,721.12-4,269.60

Finding the Fourth Proportional to 9,820.80, 14,721.12 and 4,269.60

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Solution

The fourth proportional to 9,820.80, 14,721.12 and 4,269.60 is: 6,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.80 : 14,721.12 = 4,269.60 : x
  2. Step 2: Convert to fraction form
    9,820.80/14,721.12 = 4,269.60/x
  3. Step 3: Cross multiply
    9,820.80x = 14,721.12 × 4,269.60
  4. Step 4: Simplify right side
    9,820.80x = 62,853,293.95
  5. Step 5: Solve for x
    x = 62,853,293.95/9,820.80
  6. Step 6: Final answer
    x = 6,400.02

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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.