Home / 15,363.35-21,201.43-8,649.02

Finding the Fourth Proportional to 15,363.35, 21,201.43 and 8,649.02

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Solution

The fourth proportional to 15,363.35, 21,201.43 and 8,649.02 is: 11,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363.35 : 21,201.43 = 8,649.02 : x
  2. Step 2: Convert to fraction form
    15,363.35/21,201.43 = 8,649.02/x
  3. Step 3: Cross multiply
    15,363.35x = 21,201.43 × 8,649.02
  4. Step 4: Simplify right side
    15,363.35x = 183,371,592.10
  5. Step 5: Solve for x
    x = 183,371,592.10/15,363.35
  6. Step 6: Final answer
    x = 11,935.66

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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.