Home / 15,434.54-21,299.60-8,360.99

Finding the Fourth Proportional to 15,434.54, 21,299.60 and 8,360.99

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Solution

The fourth proportional to 15,434.54, 21,299.60 and 8,360.99 is: 11,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.54 : 21,299.60 = 8,360.99 : x
  2. Step 2: Convert to fraction form
    15,434.54/21,299.60 = 8,360.99/x
  3. Step 3: Cross multiply
    15,434.54x = 21,299.60 × 8,360.99
  4. Step 4: Simplify right side
    15,434.54x = 178,085,594.30
  5. Step 5: Solve for x
    x = 178,085,594.30/15,434.54
  6. Step 6: Final answer
    x = 11,538.12

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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.