Home / 15,392.53-21,241.69-8,318.95

Finding the Fourth Proportional to 15,392.53, 21,241.69 and 8,318.95

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Solution

The fourth proportional to 15,392.53, 21,241.69 and 8,318.95 is: 11,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392.53 : 21,241.69 = 8,318.95 : x
  2. Step 2: Convert to fraction form
    15,392.53/21,241.69 = 8,318.95/x
  3. Step 3: Cross multiply
    15,392.53x = 21,241.69 × 8,318.95
  4. Step 4: Simplify right side
    15,392.53x = 176,708,649.40
  5. Step 5: Solve for x
    x = 176,708,649.40/15,392.53
  6. Step 6: Final answer
    x = 11,480.16

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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.