Home / 8,986.05-12,401.55-5,007.75

Finding the Fourth Proportional to 8,986.05, 12,401.55 and 5,007.75

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Solution

The fourth proportional to 8,986.05, 12,401.55 and 5,007.75 is: 6,911.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,986.05 : 12,401.55 = 5,007.75 : x
  2. Step 2: Convert to fraction form
    8,986.05/12,401.55 = 5,007.75/x
  3. Step 3: Cross multiply
    8,986.05x = 12,401.55 × 5,007.75
  4. Step 4: Simplify right side
    8,986.05x = 62,103,862.01
  5. Step 5: Solve for x
    x = 62,103,862.01/8,986.05
  6. Step 6: Final answer
    x = 6,911.14

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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.