Home / 8,831.31-13,249.08-2,987.97

Finding the Fourth Proportional to 8,831.31, 13,249.08 and 2,987.97

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Solution

The fourth proportional to 8,831.31, 13,249.08 and 2,987.97 is: 4,482.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.31 : 13,249.08 = 2,987.97 : x
  2. Step 2: Convert to fraction form
    8,831.31/13,249.08 = 2,987.97/x
  3. Step 3: Cross multiply
    8,831.31x = 13,249.08 × 2,987.97
  4. Step 4: Simplify right side
    8,831.31x = 39,587,853.57
  5. Step 5: Solve for x
    x = 39,587,853.57/8,831.31
  6. Step 6: Final answer
    x = 4,482.67

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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.