Home / 15,512.50-21,409.68-9,228.52

Finding the Fourth Proportional to 15,512.50, 21,409.68 and 9,228.52

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Solution

The fourth proportional to 15,512.50, 21,409.68 and 9,228.52 is: 12,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.50 : 21,409.68 = 9,228.52 : x
  2. Step 2: Convert to fraction form
    15,512.50/21,409.68 = 9,228.52/x
  3. Step 3: Cross multiply
    15,512.50x = 21,409.68 × 9,228.52
  4. Step 4: Simplify right side
    15,512.50x = 197,579,660.07
  5. Step 5: Solve for x
    x = 197,579,660.07/15,512.50
  6. Step 6: Final answer
    x = 12,736.80

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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.