Home / 15,633.39-21,574.10-8,463.29

Finding the Fourth Proportional to 15,633.39, 21,574.10 and 8,463.29

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Solution

The fourth proportional to 15,633.39, 21,574.10 and 8,463.29 is: 11,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,633.39 : 21,574.10 = 8,463.29 : x
  2. Step 2: Convert to fraction form
    15,633.39/21,574.10 = 8,463.29/x
  3. Step 3: Cross multiply
    15,633.39x = 21,574.10 × 8,463.29
  4. Step 4: Simplify right side
    15,633.39x = 182,587,714.60
  5. Step 5: Solve for x
    x = 182,587,714.60/15,633.39
  6. Step 6: Final answer
    x = 11,679.34

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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.