Home / 18,955.53-26,147.34-11,869.65

Finding the Fourth Proportional to 18,955.53, 26,147.34 and 11,869.65

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Solution

The fourth proportional to 18,955.53, 26,147.34 and 11,869.65 is: 16,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.53 : 26,147.34 = 11,869.65 : x
  2. Step 2: Convert to fraction form
    18,955.53/26,147.34 = 11,869.65/x
  3. Step 3: Cross multiply
    18,955.53x = 26,147.34 × 11,869.65
  4. Step 4: Simplify right side
    18,955.53x = 310,359,774.23
  5. Step 5: Solve for x
    x = 310,359,774.23/18,955.53
  6. Step 6: Final answer
    x = 16,373.05

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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.