Home / 15,310.62-21,127.27-8,596.54

Finding the Fourth Proportional to 15,310.62, 21,127.27 and 8,596.54

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Solution

The fourth proportional to 15,310.62, 21,127.27 and 8,596.54 is: 11,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.62 : 21,127.27 = 8,596.54 : x
  2. Step 2: Convert to fraction form
    15,310.62/21,127.27 = 8,596.54/x
  3. Step 3: Cross multiply
    15,310.62x = 21,127.27 × 8,596.54
  4. Step 4: Simplify right side
    15,310.62x = 181,621,421.65
  5. Step 5: Solve for x
    x = 181,621,421.65/15,310.62
  6. Step 6: Final answer
    x = 11,862.45

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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.