Home / 18,117.42-27,167.49-7,723.50

Finding the Fourth Proportional to 18,117.42, 27,167.49 and 7,723.50

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Solution

The fourth proportional to 18,117.42, 27,167.49 and 7,723.50 is: 11,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.42 : 27,167.49 = 7,723.50 : x
  2. Step 2: Convert to fraction form
    18,117.42/27,167.49 = 7,723.50/x
  3. Step 3: Cross multiply
    18,117.42x = 27,167.49 × 7,723.50
  4. Step 4: Simplify right side
    18,117.42x = 209,828,109.02
  5. Step 5: Solve for x
    x = 209,828,109.02/18,117.42
  6. Step 6: Final answer
    x = 11,581.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.