Home / 15,152.28-20,910.09-8,437.99

Finding the Fourth Proportional to 15,152.28, 20,910.09 and 8,437.99

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Solution

The fourth proportional to 15,152.28, 20,910.09 and 8,437.99 is: 11,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.28 : 20,910.09 = 8,437.99 : x
  2. Step 2: Convert to fraction form
    15,152.28/20,910.09 = 8,437.99/x
  3. Step 3: Cross multiply
    15,152.28x = 20,910.09 × 8,437.99
  4. Step 4: Simplify right side
    15,152.28x = 176,439,078.04
  5. Step 5: Solve for x
    x = 176,439,078.04/15,152.28
  6. Step 6: Final answer
    x = 11,644.39

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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.