Home / 13,566.54-18,718.21-8,787.94

Finding the Fourth Proportional to 13,566.54, 18,718.21 and 8,787.94

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Solution

The fourth proportional to 13,566.54, 18,718.21 and 8,787.94 is: 12,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,566.54 : 18,718.21 = 8,787.94 : x
  2. Step 2: Convert to fraction form
    13,566.54/18,718.21 = 8,787.94/x
  3. Step 3: Cross multiply
    13,566.54x = 18,718.21 × 8,787.94
  4. Step 4: Simplify right side
    13,566.54x = 164,494,600.58
  5. Step 5: Solve for x
    x = 164,494,600.58/13,566.54
  6. Step 6: Final answer
    x = 12,125.02

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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.