Home / 17,787.05-26,680.58-5,315.84

Finding the Fourth Proportional to 17,787.05, 26,680.58 and 5,315.84

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Solution

The fourth proportional to 17,787.05, 26,680.58 and 5,315.84 is: 7,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,787.05 : 26,680.58 = 5,315.84 : x
  2. Step 2: Convert to fraction form
    17,787.05/26,680.58 = 5,315.84/x
  3. Step 3: Cross multiply
    17,787.05x = 26,680.58 × 5,315.84
  4. Step 4: Simplify right side
    17,787.05x = 141,829,534.41
  5. Step 5: Solve for x
    x = 141,829,534.41/17,787.05
  6. Step 6: Final answer
    x = 7,973.75

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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.