Home / 8,831.62-13,249.76-5,130.29

Finding the Fourth Proportional to 8,831.62, 13,249.76 and 5,130.29

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Solution

The fourth proportional to 8,831.62, 13,249.76 and 5,130.29 is: 7,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.62 : 13,249.76 = 5,130.29 : x
  2. Step 2: Convert to fraction form
    8,831.62/13,249.76 = 5,130.29/x
  3. Step 3: Cross multiply
    8,831.62x = 13,249.76 × 5,130.29
  4. Step 4: Simplify right side
    8,831.62x = 67,975,069.02
  5. Step 5: Solve for x
    x = 67,975,069.02/8,831.62
  6. Step 6: Final answer
    x = 7,696.79

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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.