Home / 15,363.28-21,203.27-8,649.19

Finding the Fourth Proportional to 15,363.28, 21,203.27 and 8,649.19

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Solution

The fourth proportional to 15,363.28, 21,203.27 and 8,649.19 is: 11,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.28 : 21,203.27 = 8,649.19 : x
  2. Step 2: Convert to fraction form
    15,363.28/21,203.27 = 8,649.19/x
  3. Step 3: Cross multiply
    15,363.28x = 21,203.27 × 8,649.19
  4. Step 4: Simplify right side
    15,363.28x = 183,391,110.85
  5. Step 5: Solve for x
    x = 183,391,110.85/15,363.28
  6. Step 6: Final answer
    x = 11,936.98

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Double scale
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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.