Home / 13,486.20-18,614.71-10,801.65

Finding the Fourth Proportional to 13,486.20, 18,614.71 and 10,801.65

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Solution

The fourth proportional to 13,486.20, 18,614.71 and 10,801.65 is: 14,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.20 : 18,614.71 = 10,801.65 : x
  2. Step 2: Convert to fraction form
    13,486.20/18,614.71 = 10,801.65/x
  3. Step 3: Cross multiply
    13,486.20x = 18,614.71 × 10,801.65
  4. Step 4: Simplify right side
    13,486.20x = 201,069,665.58
  5. Step 5: Solve for x
    x = 201,069,665.58/13,486.20
  6. Step 6: Final answer
    x = 14,909.29

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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.