Home / 8,718.85-12,031.77-4,942.37

Finding the Fourth Proportional to 8,718.85, 12,031.77 and 4,942.37

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Solution

The fourth proportional to 8,718.85, 12,031.77 and 4,942.37 is: 6,820.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.85 : 12,031.77 = 4,942.37 : x
  2. Step 2: Convert to fraction form
    8,718.85/12,031.77 = 4,942.37/x
  3. Step 3: Cross multiply
    8,718.85x = 12,031.77 × 4,942.37
  4. Step 4: Simplify right side
    8,718.85x = 59,465,398.33
  5. Step 5: Solve for x
    x = 59,465,398.33/8,718.85
  6. Step 6: Final answer
    x = 6,820.32

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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.