Home / 15,360.75-21,190.10-8,983.17

Finding the Fourth Proportional to 15,360.75, 21,190.10 and 8,983.17

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Solution

The fourth proportional to 15,360.75, 21,190.10 and 8,983.17 is: 12,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.75 : 21,190.10 = 8,983.17 : x
  2. Step 2: Convert to fraction form
    15,360.75/21,190.10 = 8,983.17/x
  3. Step 3: Cross multiply
    15,360.75x = 21,190.10 × 8,983.17
  4. Step 4: Simplify right side
    15,360.75x = 190,354,270.62
  5. Step 5: Solve for x
    x = 190,354,270.62/15,360.75
  6. Step 6: Final answer
    x = 12,392.25

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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.