Home / 18,275.63-25,218.20-10,317.38

Finding the Fourth Proportional to 18,275.63, 25,218.20 and 10,317.38

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Solution

The fourth proportional to 18,275.63, 25,218.20 and 10,317.38 is: 14,236.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.63 : 25,218.20 = 10,317.38 : x
  2. Step 2: Convert to fraction form
    18,275.63/25,218.20 = 10,317.38/x
  3. Step 3: Cross multiply
    18,275.63x = 25,218.20 × 10,317.38
  4. Step 4: Simplify right side
    18,275.63x = 260,185,574.64
  5. Step 5: Solve for x
    x = 260,185,574.64/18,275.63
  6. Step 6: Final answer
    x = 14,236.75

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Half scale
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Double scale
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Similar ratio
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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.