Home / 8,031.39-12,047.07-2,187.98

Finding the Fourth Proportional to 8,031.39, 12,047.07 and 2,187.98

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Solution

The fourth proportional to 8,031.39, 12,047.07 and 2,187.98 is: 3,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.39 : 12,047.07 = 2,187.98 : x
  2. Step 2: Convert to fraction form
    8,031.39/12,047.07 = 2,187.98/x
  3. Step 3: Cross multiply
    8,031.39x = 12,047.07 × 2,187.98
  4. Step 4: Simplify right side
    8,031.39x = 26,358,802.98
  5. Step 5: Solve for x
    x = 26,358,802.98/8,031.39
  6. Step 6: Final answer
    x = 3,281.97

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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.