Home / 15,392.73-21,241.98-8,319.16

Finding the Fourth Proportional to 15,392.73, 21,241.98 and 8,319.16

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Solution

The fourth proportional to 15,392.73, 21,241.98 and 8,319.16 is: 11,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.73 : 21,241.98 = 8,319.16 : x
  2. Step 2: Convert to fraction form
    15,392.73/21,241.98 = 8,319.16/x
  3. Step 3: Cross multiply
    15,392.73x = 21,241.98 × 8,319.16
  4. Step 4: Simplify right side
    15,392.73x = 176,715,282.53
  5. Step 5: Solve for x
    x = 176,715,282.53/15,392.73
  6. Step 6: Final answer
    x = 11,480.44

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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.