Home / 18,218.19-25,140.84-10,260.51

Finding the Fourth Proportional to 18,218.19, 25,140.84 and 10,260.51

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Solution

The fourth proportional to 18,218.19, 25,140.84 and 10,260.51 is: 14,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.19 : 25,140.84 = 10,260.51 : x
  2. Step 2: Convert to fraction form
    18,218.19/25,140.84 = 10,260.51/x
  3. Step 3: Cross multiply
    18,218.19x = 25,140.84 × 10,260.51
  4. Step 4: Simplify right side
    18,218.19x = 257,957,840.23
  5. Step 5: Solve for x
    x = 257,957,840.23/18,218.19
  6. Step 6: Final answer
    x = 14,159.36

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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.