Home / 26,282.96-39,421.88-7,815.12

Finding the Fourth Proportional to 26,282.96, 39,421.88 and 7,815.12

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Solution

The fourth proportional to 26,282.96, 39,421.88 and 7,815.12 is: 11,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,282.96 : 39,421.88 = 7,815.12 : x
  2. Step 2: Convert to fraction form
    26,282.96/39,421.88 = 7,815.12/x
  3. Step 3: Cross multiply
    26,282.96x = 39,421.88 × 7,815.12
  4. Step 4: Simplify right side
    26,282.96x = 308,086,722.83
  5. Step 5: Solve for x
    x = 308,086,722.83/26,282.96
  6. Step 6: Final answer
    x = 11,721.92

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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.