Home / 10,975.38-15,145.65-6,261.18

Finding the Fourth Proportional to 10,975.38, 15,145.65 and 6,261.18

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Solution

The fourth proportional to 10,975.38, 15,145.65 and 6,261.18 is: 8,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.38 : 15,145.65 = 6,261.18 : x
  2. Step 2: Convert to fraction form
    10,975.38/15,145.65 = 6,261.18/x
  3. Step 3: Cross multiply
    10,975.38x = 15,145.65 × 6,261.18
  4. Step 4: Simplify right side
    10,975.38x = 94,829,640.87
  5. Step 5: Solve for x
    x = 94,829,640.87/10,975.38
  6. Step 6: Final answer
    x = 8,640.21

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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.