Home / 15,089.19-20,816.97-9,710.61

Finding the Fourth Proportional to 15,089.19, 20,816.97 and 9,710.61

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Solution

The fourth proportional to 15,089.19, 20,816.97 and 9,710.61 is: 13,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,089.19 : 20,816.97 = 9,710.61 : x
  2. Step 2: Convert to fraction form
    15,089.19/20,816.97 = 9,710.61/x
  3. Step 3: Cross multiply
    15,089.19x = 20,816.97 × 9,710.61
  4. Step 4: Simplify right side
    15,089.19x = 202,145,503.05
  5. Step 5: Solve for x
    x = 202,145,503.05/15,089.19
  6. Step 6: Final answer
    x = 13,396.71

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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.