Home / 15,852.92-21,875.24-8,777.56

Finding the Fourth Proportional to 15,852.92, 21,875.24 and 8,777.56

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Solution

The fourth proportional to 15,852.92, 21,875.24 and 8,777.56 is: 12,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,852.92 : 21,875.24 = 8,777.56 : x
  2. Step 2: Convert to fraction form
    15,852.92/21,875.24 = 8,777.56/x
  3. Step 3: Cross multiply
    15,852.92x = 21,875.24 × 8,777.56
  4. Step 4: Simplify right side
    15,852.92x = 192,011,231.61
  5. Step 5: Solve for x
    x = 192,011,231.61/15,852.92
  6. Step 6: Final answer
    x = 12,112.04

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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.