Home / 18,619.96-27,926.76-6,140.12

Finding the Fourth Proportional to 18,619.96, 27,926.76 and 6,140.12

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Solution

The fourth proportional to 18,619.96, 27,926.76 and 6,140.12 is: 9,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.96 : 27,926.76 = 6,140.12 : x
  2. Step 2: Convert to fraction form
    18,619.96/27,926.76 = 6,140.12/x
  3. Step 3: Cross multiply
    18,619.96x = 27,926.76 × 6,140.12
  4. Step 4: Simplify right side
    18,619.96x = 171,473,657.61
  5. Step 5: Solve for x
    x = 171,473,657.61/18,619.96
  6. Step 6: Final answer
    x = 9,209.13

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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.