Home / 15,525.24-21,426.72-8,812.97

Finding the Fourth Proportional to 15,525.24, 21,426.72 and 8,812.97

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Solution

The fourth proportional to 15,525.24, 21,426.72 and 8,812.97 is: 12,162.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.24 : 21,426.72 = 8,812.97 : x
  2. Step 2: Convert to fraction form
    15,525.24/21,426.72 = 8,812.97/x
  3. Step 3: Cross multiply
    15,525.24x = 21,426.72 × 8,812.97
  4. Step 4: Simplify right side
    15,525.24x = 188,832,933.42
  5. Step 5: Solve for x
    x = 188,832,933.42/15,525.24
  6. Step 6: Final answer
    x = 12,162.96

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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.