Home / 15,309.86-21,126.14-8,593.95

Finding the Fourth Proportional to 15,309.86, 21,126.14 and 8,593.95

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Solution

The fourth proportional to 15,309.86, 21,126.14 and 8,593.95 is: 11,858.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.86 : 21,126.14 = 8,593.95 : x
  2. Step 2: Convert to fraction form
    15,309.86/21,126.14 = 8,593.95/x
  3. Step 3: Cross multiply
    15,309.86x = 21,126.14 × 8,593.95
  4. Step 4: Simplify right side
    15,309.86x = 181,556,990.85
  5. Step 5: Solve for x
    x = 181,556,990.85/15,309.86
  6. Step 6: Final answer
    x = 11,858.83

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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.