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Finding the Fourth Proportional to 18,210.39, 25,130.80 and 10,252.90

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Solution

The fourth proportional to 18,210.39, 25,130.80 and 10,252.90 is: 14,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.39 : 25,130.80 = 10,252.90 : x
  2. Step 2: Convert to fraction form
    18,210.39/25,130.80 = 10,252.90/x
  3. Step 3: Cross multiply
    18,210.39x = 25,130.80 × 10,252.90
  4. Step 4: Simplify right side
    18,210.39x = 257,663,479.30
  5. Step 5: Solve for x
    x = 257,663,479.30/18,210.39
  6. Step 6: Final answer
    x = 14,149.26

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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.