Home / 15,401.49-21,254.09-8,327.90

Finding the Fourth Proportional to 15,401.49, 21,254.09 and 8,327.90

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Solution

The fourth proportional to 15,401.49, 21,254.09 and 8,327.90 is: 11,492.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.49 : 21,254.09 = 8,327.90 : x
  2. Step 2: Convert to fraction form
    15,401.49/21,254.09 = 8,327.90/x
  3. Step 3: Cross multiply
    15,401.49x = 21,254.09 × 8,327.90
  4. Step 4: Simplify right side
    15,401.49x = 177,001,788.20
  5. Step 5: Solve for x
    x = 177,001,788.20/15,401.49
  6. Step 6: Final answer
    x = 11,492.51

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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.