Home / 15,434.45-21,299.96-8,719.94

Finding the Fourth Proportional to 15,434.45, 21,299.96 and 8,719.94

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Solution

The fourth proportional to 15,434.45, 21,299.96 and 8,719.94 is: 12,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.45 : 21,299.96 = 8,719.94 : x
  2. Step 2: Convert to fraction form
    15,434.45/21,299.96 = 8,719.94/x
  3. Step 3: Cross multiply
    15,434.45x = 21,299.96 × 8,719.94
  4. Step 4: Simplify right side
    15,434.45x = 185,734,448.25
  5. Step 5: Solve for x
    x = 185,734,448.25/15,434.45
  6. Step 6: Final answer
    x = 12,033.76

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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.