Home / 10,521.33-15,766.96-7,726.07

Finding the Fourth Proportional to 10,521.33, 15,766.96 and 7,726.07

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Solution

The fourth proportional to 10,521.33, 15,766.96 and 7,726.07 is: 11,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,521.33 : 15,766.96 = 7,726.07 : x
  2. Step 2: Convert to fraction form
    10,521.33/15,766.96 = 7,726.07/x
  3. Step 3: Cross multiply
    10,521.33x = 15,766.96 × 7,726.07
  4. Step 4: Simplify right side
    10,521.33x = 121,816,656.75
  5. Step 5: Solve for x
    x = 121,816,656.75/10,521.33
  6. Step 6: Final answer
    x = 11,578.07

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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.