Home / 15,238.84-21,032.34-8,951.56

Finding the Fourth Proportional to 15,238.84, 21,032.34 and 8,951.56

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Solution

The fourth proportional to 15,238.84, 21,032.34 and 8,951.56 is: 12,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.84 : 21,032.34 = 8,951.56 : x
  2. Step 2: Convert to fraction form
    15,238.84/21,032.34 = 8,951.56/x
  3. Step 3: Cross multiply
    15,238.84x = 21,032.34 × 8,951.56
  4. Step 4: Simplify right side
    15,238.84x = 188,272,253.45
  5. Step 5: Solve for x
    x = 188,272,253.45/15,238.84
  6. Step 6: Final answer
    x = 12,354.76

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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.