Home / 10,902.12-15,045.42-6,426.06

Finding the Fourth Proportional to 10,902.12, 15,045.42 and 6,426.06

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Solution

The fourth proportional to 10,902.12, 15,045.42 and 6,426.06 is: 8,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.12 : 15,045.42 = 6,426.06 : x
  2. Step 2: Convert to fraction form
    10,902.12/15,045.42 = 6,426.06/x
  3. Step 3: Cross multiply
    10,902.12x = 15,045.42 × 6,426.06
  4. Step 4: Simplify right side
    10,902.12x = 96,682,771.65
  5. Step 5: Solve for x
    x = 96,682,771.65/10,902.12
  6. Step 6: Final answer
    x = 8,868.25

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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.