Home / 15,225.26-21,010.79-8,510.87

Finding the Fourth Proportional to 15,225.26, 21,010.79 and 8,510.87

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Solution

The fourth proportional to 15,225.26, 21,010.79 and 8,510.87 is: 11,744.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,225.26 : 21,010.79 = 8,510.87 : x
  2. Step 2: Convert to fraction form
    15,225.26/21,010.79 = 8,510.87/x
  3. Step 3: Cross multiply
    15,225.26x = 21,010.79 × 8,510.87
  4. Step 4: Simplify right side
    15,225.26x = 178,820,176.09
  5. Step 5: Solve for x
    x = 178,820,176.09/15,225.26
  6. Step 6: Final answer
    x = 11,744.97

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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.