Home / 15,401.63-21,254.25-8,328.05

Finding the Fourth Proportional to 15,401.63, 21,254.25 and 8,328.05

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Solution

The fourth proportional to 15,401.63, 21,254.25 and 8,328.05 is: 11,492.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.63 : 21,254.25 = 8,328.05 : x
  2. Step 2: Convert to fraction form
    15,401.63/21,254.25 = 8,328.05/x
  3. Step 3: Cross multiply
    15,401.63x = 21,254.25 × 8,328.05
  4. Step 4: Simplify right side
    15,401.63x = 177,006,350.44
  5. Step 5: Solve for x
    x = 177,006,350.44/15,401.63
  6. Step 6: Final answer
    x = 11,492.71

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Half scale
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Double scale
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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.