Home / 15,434.24-21,299.40-8,719.94

Finding the Fourth Proportional to 15,434.24, 21,299.40 and 8,719.94

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Solution

The fourth proportional to 15,434.24, 21,299.40 and 8,719.94 is: 12,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.24 : 21,299.40 = 8,719.94 : x
  2. Step 2: Convert to fraction form
    15,434.24/21,299.40 = 8,719.94/x
  3. Step 3: Cross multiply
    15,434.24x = 21,299.40 × 8,719.94
  4. Step 4: Simplify right side
    15,434.24x = 185,729,383.54
  5. Step 5: Solve for x
    x = 185,729,383.54/15,434.24
  6. Step 6: Final answer
    x = 12,033.60

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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.