Home / 13,015.65-17,964.87-11,687.04

Finding the Fourth Proportional to 13,015.65, 17,964.87 and 11,687.04

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Solution

The fourth proportional to 13,015.65, 17,964.87 and 11,687.04 is: 16,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.65 : 17,964.87 = 11,687.04 : x
  2. Step 2: Convert to fraction form
    13,015.65/17,964.87 = 11,687.04/x
  3. Step 3: Cross multiply
    13,015.65x = 17,964.87 × 11,687.04
  4. Step 4: Simplify right side
    13,015.65x = 209,956,154.28
  5. Step 5: Solve for x
    x = 209,956,154.28/13,015.65
  6. Step 6: Final answer
    x = 16,131.05

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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.