Home / 9,787.34-13,493.30-6,638.06

Finding the Fourth Proportional to 9,787.34, 13,493.30 and 6,638.06

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Solution

The fourth proportional to 9,787.34, 13,493.30 and 6,638.06 is: 9,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.34 : 13,493.30 = 6,638.06 : x
  2. Step 2: Convert to fraction form
    9,787.34/13,493.30 = 6,638.06/x
  3. Step 3: Cross multiply
    9,787.34x = 13,493.30 × 6,638.06
  4. Step 4: Simplify right side
    9,787.34x = 89,569,335.00
  5. Step 5: Solve for x
    x = 89,569,335.00/9,787.34
  6. Step 6: Final answer
    x = 9,151.55

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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.