Home / 13,561.90-18,715.66-8,843.45

Finding the Fourth Proportional to 13,561.90, 18,715.66 and 8,843.45

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Solution

The fourth proportional to 13,561.90, 18,715.66 and 8,843.45 is: 12,204.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.90 : 18,715.66 = 8,843.45 : x
  2. Step 2: Convert to fraction form
    13,561.90/18,715.66 = 8,843.45/x
  3. Step 3: Cross multiply
    13,561.90x = 18,715.66 × 8,843.45
  4. Step 4: Simplify right side
    13,561.90x = 165,510,887.74
  5. Step 5: Solve for x
    x = 165,510,887.74/13,561.90
  6. Step 6: Final answer
    x = 12,204.11

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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.