Home / 15,525.97-21,378.38-11,703.16

Finding the Fourth Proportional to 15,525.97, 21,378.38 and 11,703.16

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Solution

The fourth proportional to 15,525.97, 21,378.38 and 11,703.16 is: 16,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.97 : 21,378.38 = 11,703.16 : x
  2. Step 2: Convert to fraction form
    15,525.97/21,378.38 = 11,703.16/x
  3. Step 3: Cross multiply
    15,525.97x = 21,378.38 × 11,703.16
  4. Step 4: Simplify right side
    15,525.97x = 250,194,630.94
  5. Step 5: Solve for x
    x = 250,194,630.94/15,525.97
  6. Step 6: Final answer
    x = 16,114.59

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Half scale
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Double scale
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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.