Home / 8,031.08-12,045.40-2,188.14

Finding the Fourth Proportional to 8,031.08, 12,045.40 and 2,188.14

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Solution

The fourth proportional to 8,031.08, 12,045.40 and 2,188.14 is: 3,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.08 : 12,045.40 = 2,188.14 : x
  2. Step 2: Convert to fraction form
    8,031.08/12,045.40 = 2,188.14/x
  3. Step 3: Cross multiply
    8,031.08x = 12,045.40 × 2,188.14
  4. Step 4: Simplify right side
    8,031.08x = 26,357,021.56
  5. Step 5: Solve for x
    x = 26,357,021.56/8,031.08
  6. Step 6: Final answer
    x = 3,281.88

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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.