Home / 8,398.13-11,589.61-4,621.51

Finding the Fourth Proportional to 8,398.13, 11,589.61 and 4,621.51

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Solution

The fourth proportional to 8,398.13, 11,589.61 and 4,621.51 is: 6,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.13 : 11,589.61 = 4,621.51 : x
  2. Step 2: Convert to fraction form
    8,398.13/11,589.61 = 4,621.51/x
  3. Step 3: Cross multiply
    8,398.13x = 11,589.61 × 4,621.51
  4. Step 4: Simplify right side
    8,398.13x = 53,561,498.51
  5. Step 5: Solve for x
    x = 53,561,498.51/8,398.13
  6. Step 6: Final answer
    x = 6,377.79

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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.