Home / 8,266.19-12,403.25-5,145.38

Finding the Fourth Proportional to 8,266.19, 12,403.25 and 5,145.38

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Solution

The fourth proportional to 8,266.19, 12,403.25 and 5,145.38 is: 7,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.19 : 12,403.25 = 5,145.38 : x
  2. Step 2: Convert to fraction form
    8,266.19/12,403.25 = 5,145.38/x
  3. Step 3: Cross multiply
    8,266.19x = 12,403.25 × 5,145.38
  4. Step 4: Simplify right side
    8,266.19x = 63,819,346.74
  5. Step 5: Solve for x
    x = 63,819,346.74/8,266.19
  6. Step 6: Final answer
    x = 7,720.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.