Home / 15,510.27-21,405.33-8,797.08

Finding the Fourth Proportional to 15,510.27, 21,405.33 and 8,797.08

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Solution

The fourth proportional to 15,510.27, 21,405.33 and 8,797.08 is: 12,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.27 : 21,405.33 = 8,797.08 : x
  2. Step 2: Convert to fraction form
    15,510.27/21,405.33 = 8,797.08/x
  3. Step 3: Cross multiply
    15,510.27x = 21,405.33 × 8,797.08
  4. Step 4: Simplify right side
    15,510.27x = 188,304,400.44
  5. Step 5: Solve for x
    x = 188,304,400.44/15,510.27
  6. Step 6: Final answer
    x = 12,140.63

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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.