Home / 15,310.61-21,128.44-8,596.06

Finding the Fourth Proportional to 15,310.61, 21,128.44 and 8,596.06

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Solution

The fourth proportional to 15,310.61, 21,128.44 and 8,596.06 is: 11,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.61 : 21,128.44 = 8,596.06 : x
  2. Step 2: Convert to fraction form
    15,310.61/21,128.44 = 8,596.06/x
  3. Step 3: Cross multiply
    15,310.61x = 21,128.44 × 8,596.06
  4. Step 4: Simplify right side
    15,310.61x = 181,621,337.95
  5. Step 5: Solve for x
    x = 181,621,337.95/15,310.61
  6. Step 6: Final answer
    x = 11,862.45

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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.