Home / 19,000.74-26,221.12-10,387.10

Finding the Fourth Proportional to 19,000.74, 26,221.12 and 10,387.10

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Solution

The fourth proportional to 19,000.74, 26,221.12 and 10,387.10 is: 14,334.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.74 : 26,221.12 = 10,387.10 : x
  2. Step 2: Convert to fraction form
    19,000.74/26,221.12 = 10,387.10/x
  3. Step 3: Cross multiply
    19,000.74x = 26,221.12 × 10,387.10
  4. Step 4: Simplify right side
    19,000.74x = 272,361,435.14
  5. Step 5: Solve for x
    x = 272,361,435.14/19,000.74
  6. Step 6: Final answer
    x = 14,334.25

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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.