Home / 7,551.90-10,412.55-6,294.78

Finding the Fourth Proportional to 7,551.90, 10,412.55 and 6,294.78

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Solution

The fourth proportional to 7,551.90, 10,412.55 and 6,294.78 is: 8,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.90 : 10,412.55 = 6,294.78 : x
  2. Step 2: Convert to fraction form
    7,551.90/10,412.55 = 6,294.78/x
  3. Step 3: Cross multiply
    7,551.90x = 10,412.55 × 6,294.78
  4. Step 4: Simplify right side
    7,551.90x = 65,544,711.49
  5. Step 5: Solve for x
    x = 65,544,711.49/7,551.90
  6. Step 6: Final answer
    x = 8,679.23

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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.