Home / 15,298.67-21,112.50-8,584.79

Finding the Fourth Proportional to 15,298.67, 21,112.50 and 8,584.79

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Solution

The fourth proportional to 15,298.67, 21,112.50 and 8,584.79 is: 11,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.67 : 21,112.50 = 8,584.79 : x
  2. Step 2: Convert to fraction form
    15,298.67/21,112.50 = 8,584.79/x
  3. Step 3: Cross multiply
    15,298.67x = 21,112.50 × 8,584.79
  4. Step 4: Simplify right side
    15,298.67x = 181,246,378.88
  5. Step 5: Solve for x
    x = 181,246,378.88/15,298.67
  6. Step 6: Final answer
    x = 11,847.20

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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.