Home / 26,909.80-40,364.70-7,191.40

Finding the Fourth Proportional to 26,909.80, 40,364.70 and 7,191.40

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Solution

The fourth proportional to 26,909.80, 40,364.70 and 7,191.40 is: 10,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.80 : 40,364.70 = 7,191.40 : x
  2. Step 2: Convert to fraction form
    26,909.80/40,364.70 = 7,191.40/x
  3. Step 3: Cross multiply
    26,909.80x = 40,364.70 × 7,191.40
  4. Step 4: Simplify right side
    26,909.80x = 290,278,703.58
  5. Step 5: Solve for x
    x = 290,278,703.58/26,909.80
  6. Step 6: Final answer
    x = 10,787.10

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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.