Home / 8,718.46-12,031.23-4,739.64

Finding the Fourth Proportional to 8,718.46, 12,031.23 and 4,739.64

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Solution

The fourth proportional to 8,718.46, 12,031.23 and 4,739.64 is: 6,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.46 : 12,031.23 = 4,739.64 : x
  2. Step 2: Convert to fraction form
    8,718.46/12,031.23 = 4,739.64/x
  3. Step 3: Cross multiply
    8,718.46x = 12,031.23 × 4,739.64
  4. Step 4: Simplify right side
    8,718.46x = 57,023,705.45
  5. Step 5: Solve for x
    x = 57,023,705.45/8,718.46
  6. Step 6: Final answer
    x = 6,540.57

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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.