Home / 16,787.84-23,127.12-11,742.64

Finding the Fourth Proportional to 16,787.84, 23,127.12 and 11,742.64

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Solution

The fourth proportional to 16,787.84, 23,127.12 and 11,742.64 is: 16,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.84 : 23,127.12 = 11,742.64 : x
  2. Step 2: Convert to fraction form
    16,787.84/23,127.12 = 11,742.64/x
  3. Step 3: Cross multiply
    16,787.84x = 23,127.12 × 11,742.64
  4. Step 4: Simplify right side
    16,787.84x = 271,573,444.40
  5. Step 5: Solve for x
    x = 271,573,444.40/16,787.84
  6. Step 6: Final answer
    x = 16,176.79

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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.