Home / 18,998.13-26,217.59-10,500.12

Finding the Fourth Proportional to 18,998.13, 26,217.59 and 10,500.12

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Solution

The fourth proportional to 18,998.13, 26,217.59 and 10,500.12 is: 14,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.13 : 26,217.59 = 10,500.12 : x
  2. Step 2: Convert to fraction form
    18,998.13/26,217.59 = 10,500.12/x
  3. Step 3: Cross multiply
    18,998.13x = 26,217.59 × 10,500.12
  4. Step 4: Simplify right side
    18,998.13x = 275,287,841.11
  5. Step 5: Solve for x
    x = 275,287,841.11/18,998.13
  6. Step 6: Final answer
    x = 14,490.26

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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.