Home / 8,718.18-12,031.08-4,739.32

Finding the Fourth Proportional to 8,718.18, 12,031.08 and 4,739.32

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Solution

The fourth proportional to 8,718.18, 12,031.08 and 4,739.32 is: 6,540.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.18 : 12,031.08 = 4,739.32 : x
  2. Step 2: Convert to fraction form
    8,718.18/12,031.08 = 4,739.32/x
  3. Step 3: Cross multiply
    8,718.18x = 12,031.08 × 4,739.32
  4. Step 4: Simplify right side
    8,718.18x = 57,019,178.91
  5. Step 5: Solve for x
    x = 57,019,178.91/8,718.18
  6. Step 6: Final answer
    x = 6,540.26

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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.