Home / 8,818.47-13,222.38-4,139.51

Finding the Fourth Proportional to 8,818.47, 13,222.38 and 4,139.51

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Solution

The fourth proportional to 8,818.47, 13,222.38 and 4,139.51 is: 6,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.47 : 13,222.38 = 4,139.51 : x
  2. Step 2: Convert to fraction form
    8,818.47/13,222.38 = 4,139.51/x
  3. Step 3: Cross multiply
    8,818.47x = 13,222.38 × 4,139.51
  4. Step 4: Simplify right side
    8,818.47x = 54,734,108.12
  5. Step 5: Solve for x
    x = 54,734,108.12/8,818.47
  6. Step 6: Final answer
    x = 6,206.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.