Home / 15,472.25-21,351.51-8,398.94

Finding the Fourth Proportional to 15,472.25, 21,351.51 and 8,398.94

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Solution

The fourth proportional to 15,472.25, 21,351.51 and 8,398.94 is: 11,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.25 : 21,351.51 = 8,398.94 : x
  2. Step 2: Convert to fraction form
    15,472.25/21,351.51 = 8,398.94/x
  3. Step 3: Cross multiply
    15,472.25x = 21,351.51 × 8,398.94
  4. Step 4: Simplify right side
    15,472.25x = 179,330,051.40
  5. Step 5: Solve for x
    x = 179,330,051.40/15,472.25
  6. Step 6: Final answer
    x = 11,590.43

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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.