Home / 15,310.29-21,126.57-8,596.65

Finding the Fourth Proportional to 15,310.29, 21,126.57 and 8,596.65

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Solution

The fourth proportional to 15,310.29, 21,126.57 and 8,596.65 is: 11,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.29 : 21,126.57 = 8,596.65 : x
  2. Step 2: Convert to fraction form
    15,310.29/21,126.57 = 8,596.65/x
  3. Step 3: Cross multiply
    15,310.29x = 21,126.57 × 8,596.65
  4. Step 4: Simplify right side
    15,310.29x = 181,617,727.99
  5. Step 5: Solve for x
    x = 181,617,727.99/15,310.29
  6. Step 6: Final answer
    x = 11,862.46

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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.