Home / 8,718.08-12,031-4,739.22

Finding the Fourth Proportional to 8,718.08, 12,031 and 4,739.22

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Solution

The fourth proportional to 8,718.08, 12,031 and 4,739.22 is: 6,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.08 : 12,031 = 4,739.22 : x
  2. Step 2: Convert to fraction form
    8,718.08/12,031 = 4,739.22/x
  3. Step 3: Cross multiply
    8,718.08x = 12,031 × 4,739.22
  4. Step 4: Simplify right side
    8,718.08x = 57,017,555.82
  5. Step 5: Solve for x
    x = 57,017,555.82/8,718.08
  6. Step 6: Final answer
    x = 6,540.15

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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.