Home / 18,979.75-26,191.89-10,482.45

Finding the Fourth Proportional to 18,979.75, 26,191.89 and 10,482.45

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Solution

The fourth proportional to 18,979.75, 26,191.89 and 10,482.45 is: 14,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.75 : 26,191.89 = 10,482.45 : x
  2. Step 2: Convert to fraction form
    18,979.75/26,191.89 = 10,482.45/x
  3. Step 3: Cross multiply
    18,979.75x = 26,191.89 × 10,482.45
  4. Step 4: Simplify right side
    18,979.75x = 274,555,079.11
  5. Step 5: Solve for x
    x = 274,555,079.11/18,979.75
  6. Step 6: Final answer
    x = 14,465.68

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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.