Home / 15,228.39-22,787.22-12,571.18

Finding the Fourth Proportional to 15,228.39, 22,787.22 and 12,571.18

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Solution

The fourth proportional to 15,228.39, 22,787.22 and 12,571.18 is: 18,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.39 : 22,787.22 = 12,571.18 : x
  2. Step 2: Convert to fraction form
    15,228.39/22,787.22 = 12,571.18/x
  3. Step 3: Cross multiply
    15,228.39x = 22,787.22 × 12,571.18
  4. Step 4: Simplify right side
    15,228.39x = 286,462,362.67
  5. Step 5: Solve for x
    x = 286,462,362.67/15,228.39
  6. Step 6: Final answer
    x = 18,811.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.