Home / 18,274.76-25,219.20-9,891.26

Finding the Fourth Proportional to 18,274.76, 25,219.20 and 9,891.26

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Solution

The fourth proportional to 18,274.76, 25,219.20 and 9,891.26 is: 13,649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.76 : 25,219.20 = 9,891.26 : x
  2. Step 2: Convert to fraction form
    18,274.76/25,219.20 = 9,891.26/x
  3. Step 3: Cross multiply
    18,274.76x = 25,219.20 × 9,891.26
  4. Step 4: Simplify right side
    18,274.76x = 249,449,664.19
  5. Step 5: Solve for x
    x = 249,449,664.19/18,274.76
  6. Step 6: Final answer
    x = 13,649.96

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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.