Home / 15,310.72-21,127.08-8,595

Finding the Fourth Proportional to 15,310.72, 21,127.08 and 8,595

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Solution

The fourth proportional to 15,310.72, 21,127.08 and 8,595 is: 11,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.72 : 21,127.08 = 8,595 : x
  2. Step 2: Convert to fraction form
    15,310.72/21,127.08 = 8,595/x
  3. Step 3: Cross multiply
    15,310.72x = 21,127.08 × 8,595
  4. Step 4: Simplify right side
    15,310.72x = 181,587,252.60
  5. Step 5: Solve for x
    x = 181,587,252.60/15,310.72
  6. Step 6: Final answer
    x = 11,860.14

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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.