Home / 8,718.18-12,031.38-5,184.96

Finding the Fourth Proportional to 8,718.18, 12,031.38 and 5,184.96

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Solution

The fourth proportional to 8,718.18, 12,031.38 and 5,184.96 is: 7,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.18 : 12,031.38 = 5,184.96 : x
  2. Step 2: Convert to fraction form
    8,718.18/12,031.38 = 5,184.96/x
  3. Step 3: Cross multiply
    8,718.18x = 12,031.38 × 5,184.96
  4. Step 4: Simplify right side
    8,718.18x = 62,382,224.04
  5. Step 5: Solve for x
    x = 62,382,224.04/8,718.18
  6. Step 6: Final answer
    x = 7,155.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.