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Finding the Fourth Proportional to 6,751.47, 9,318.15 and 4,988.19

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Solution

The fourth proportional to 6,751.47, 9,318.15 and 4,988.19 is: 6,884.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.47 : 9,318.15 = 4,988.19 : x
  2. Step 2: Convert to fraction form
    6,751.47/9,318.15 = 4,988.19/x
  3. Step 3: Cross multiply
    6,751.47x = 9,318.15 × 4,988.19
  4. Step 4: Simplify right side
    6,751.47x = 46,480,702.65
  5. Step 5: Solve for x
    x = 46,480,702.65/6,751.47
  6. Step 6: Final answer
    x = 6,884.53

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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.