Home / 8,031.40-12,047.07-3,587.92

Finding the Fourth Proportional to 8,031.40, 12,047.07 and 3,587.92

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Solution

The fourth proportional to 8,031.40, 12,047.07 and 3,587.92 is: 5,381.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.40 : 12,047.07 = 3,587.92 : x
  2. Step 2: Convert to fraction form
    8,031.40/12,047.07 = 3,587.92/x
  3. Step 3: Cross multiply
    8,031.40x = 12,047.07 × 3,587.92
  4. Step 4: Simplify right side
    8,031.40x = 43,223,923.39
  5. Step 5: Solve for x
    x = 43,223,923.39/8,031.40
  6. Step 6: Final answer
    x = 5,381.87

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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.