Home / 15,518.14-21,377.40-11,532.34

Finding the Fourth Proportional to 15,518.14, 21,377.40 and 11,532.34

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Solution

The fourth proportional to 15,518.14, 21,377.40 and 11,532.34 is: 15,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518.14 : 21,377.40 = 11,532.34 : x
  2. Step 2: Convert to fraction form
    15,518.14/21,377.40 = 11,532.34/x
  3. Step 3: Cross multiply
    15,518.14x = 21,377.40 × 11,532.34
  4. Step 4: Simplify right side
    15,518.14x = 246,531,445.12
  5. Step 5: Solve for x
    x = 246,531,445.12/15,518.14
  6. Step 6: Final answer
    x = 15,886.66

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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.