Home / 8,011.40-12,001.18-6,271.88

Finding the Fourth Proportional to 8,011.40, 12,001.18 and 6,271.88

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Solution

The fourth proportional to 8,011.40, 12,001.18 and 6,271.88 is: 9,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.40 : 12,001.18 = 6,271.88 : x
  2. Step 2: Convert to fraction form
    8,011.40/12,001.18 = 6,271.88/x
  3. Step 3: Cross multiply
    8,011.40x = 12,001.18 × 6,271.88
  4. Step 4: Simplify right side
    8,011.40x = 75,269,960.82
  5. Step 5: Solve for x
    x = 75,269,960.82/8,011.40
  6. Step 6: Final answer
    x = 9,395.36

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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.