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Finding the Fourth Proportional to 9,248.80, 12,762.48 and 5,270.80

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Solution

The fourth proportional to 9,248.80, 12,762.48 and 5,270.80 is: 7,273.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,248.80 : 12,762.48 = 5,270.80 : x
  2. Step 2: Convert to fraction form
    9,248.80/12,762.48 = 5,270.80/x
  3. Step 3: Cross multiply
    9,248.80x = 12,762.48 × 5,270.80
  4. Step 4: Simplify right side
    9,248.80x = 67,268,479.58
  5. Step 5: Solve for x
    x = 67,268,479.58/9,248.80
  6. Step 6: Final answer
    x = 7,273.21

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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.