Home / 8,262.20-11,403.08-5,280.02

Finding the Fourth Proportional to 8,262.20, 11,403.08 and 5,280.02

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Solution

The fourth proportional to 8,262.20, 11,403.08 and 5,280.02 is: 7,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.20 : 11,403.08 = 5,280.02 : x
  2. Step 2: Convert to fraction form
    8,262.20/11,403.08 = 5,280.02/x
  3. Step 3: Cross multiply
    8,262.20x = 11,403.08 × 5,280.02
  4. Step 4: Simplify right side
    8,262.20x = 60,208,490.46
  5. Step 5: Solve for x
    x = 60,208,490.46/8,262.20
  6. Step 6: Final answer
    x = 7,287.22

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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.