Home / 9,736.02-13,438.92-6,381

Finding the Fourth Proportional to 9,736.02, 13,438.92 and 6,381

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Solution

The fourth proportional to 9,736.02, 13,438.92 and 6,381 is: 8,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,736.02 : 13,438.92 = 6,381 : x
  2. Step 2: Convert to fraction form
    9,736.02/13,438.92 = 6,381/x
  3. Step 3: Cross multiply
    9,736.02x = 13,438.92 × 6,381
  4. Step 4: Simplify right side
    9,736.02x = 85,753,748.52
  5. Step 5: Solve for x
    x = 85,753,748.52/9,736.02
  6. Step 6: Final answer
    x = 8,807.89

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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.