Home / 7,377.04-10,170.12-5,387.68

Finding the Fourth Proportional to 7,377.04, 10,170.12 and 5,387.68

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Solution

The fourth proportional to 7,377.04, 10,170.12 and 5,387.68 is: 7,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,377.04 : 10,170.12 = 5,387.68 : x
  2. Step 2: Convert to fraction form
    7,377.04/10,170.12 = 5,387.68/x
  3. Step 3: Cross multiply
    7,377.04x = 10,170.12 × 5,387.68
  4. Step 4: Simplify right side
    7,377.04x = 54,793,352.12
  5. Step 5: Solve for x
    x = 54,793,352.12/7,377.04
  6. Step 6: Final answer
    x = 7,427.55

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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.