Home / 15,471.26-21,348.15-9,186.14

Finding the Fourth Proportional to 15,471.26, 21,348.15 and 9,186.14

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Solution

The fourth proportional to 15,471.26, 21,348.15 and 9,186.14 is: 12,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,471.26 : 21,348.15 = 9,186.14 : x
  2. Step 2: Convert to fraction form
    15,471.26/21,348.15 = 9,186.14/x
  3. Step 3: Cross multiply
    15,471.26x = 21,348.15 × 9,186.14
  4. Step 4: Simplify right side
    15,471.26x = 196,107,094.64
  5. Step 5: Solve for x
    x = 196,107,094.64/15,471.26
  6. Step 6: Final answer
    x = 12,675.57

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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.