Home / 17,787.42-26,678.61-5,309.46

Finding the Fourth Proportional to 17,787.42, 26,678.61 and 5,309.46

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Solution

The fourth proportional to 17,787.42, 26,678.61 and 5,309.46 is: 7,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.42 : 26,678.61 = 5,309.46 : x
  2. Step 2: Convert to fraction form
    17,787.42/26,678.61 = 5,309.46/x
  3. Step 3: Cross multiply
    17,787.42x = 26,678.61 × 5,309.46
  4. Step 4: Simplify right side
    17,787.42x = 141,649,012.65
  5. Step 5: Solve for x
    x = 141,649,012.65/17,787.42
  6. Step 6: Final answer
    x = 7,963.44

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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.