Home / 15,407.83-21,262.80-8,334.25

Finding the Fourth Proportional to 15,407.83, 21,262.80 and 8,334.25

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Solution

The fourth proportional to 15,407.83, 21,262.80 and 8,334.25 is: 11,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.83 : 21,262.80 = 8,334.25 : x
  2. Step 2: Convert to fraction form
    15,407.83/21,262.80 = 8,334.25/x
  3. Step 3: Cross multiply
    15,407.83x = 21,262.80 × 8,334.25
  4. Step 4: Simplify right side
    15,407.83x = 177,209,548.73
  5. Step 5: Solve for x
    x = 177,209,548.73/15,407.83
  6. Step 6: Final answer
    x = 11,501.27

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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.