Home / 15,401.79-21,254.49-8,328.20

Finding the Fourth Proportional to 15,401.79, 21,254.49 and 8,328.20

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Solution

The fourth proportional to 15,401.79, 21,254.49 and 8,328.20 is: 11,492.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.79 : 21,254.49 = 8,328.20 : x
  2. Step 2: Convert to fraction form
    15,401.79/21,254.49 = 8,328.20/x
  3. Step 3: Cross multiply
    15,401.79x = 21,254.49 × 8,328.20
  4. Step 4: Simplify right side
    15,401.79x = 177,011,537.35
  5. Step 5: Solve for x
    x = 177,011,537.35/15,401.79
  6. Step 6: Final answer
    x = 11,492.92

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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.