Home / 15,299.42-21,113.42-8,584.65

Finding the Fourth Proportional to 15,299.42, 21,113.42 and 8,584.65

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Solution

The fourth proportional to 15,299.42, 21,113.42 and 8,584.65 is: 11,846.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.42 : 21,113.42 = 8,584.65 : x
  2. Step 2: Convert to fraction form
    15,299.42/21,113.42 = 8,584.65/x
  3. Step 3: Cross multiply
    15,299.42x = 21,113.42 × 8,584.65
  4. Step 4: Simplify right side
    15,299.42x = 181,251,278.08
  5. Step 5: Solve for x
    x = 181,251,278.08/15,299.42
  6. Step 6: Final answer
    x = 11,846.94

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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.