Home / 15,882.90-21,903.93-13,226.10

Finding the Fourth Proportional to 15,882.90, 21,903.93 and 13,226.10

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Solution

The fourth proportional to 15,882.90, 21,903.93 and 13,226.10 is: 18,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.90 : 21,903.93 = 13,226.10 : x
  2. Step 2: Convert to fraction form
    15,882.90/21,903.93 = 13,226.10/x
  3. Step 3: Cross multiply
    15,882.90x = 21,903.93 × 13,226.10
  4. Step 4: Simplify right side
    15,882.90x = 289,703,568.57
  5. Step 5: Solve for x
    x = 289,703,568.57/15,882.90
  6. Step 6: Final answer
    x = 18,239.97

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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.