Home / 15,383.24-21,228.97-9,013.60

Finding the Fourth Proportional to 15,383.24, 21,228.97 and 9,013.60

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Solution

The fourth proportional to 15,383.24, 21,228.97 and 9,013.60 is: 12,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.24 : 21,228.97 = 9,013.60 : x
  2. Step 2: Convert to fraction form
    15,383.24/21,228.97 = 9,013.60/x
  3. Step 3: Cross multiply
    15,383.24x = 21,228.97 × 9,013.60
  4. Step 4: Simplify right side
    15,383.24x = 191,349,443.99
  5. Step 5: Solve for x
    x = 191,349,443.99/15,383.24
  6. Step 6: Final answer
    x = 12,438.83

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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.