Home / 11,639.28-16,062.36-6,603.12

Finding the Fourth Proportional to 11,639.28, 16,062.36 and 6,603.12

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Solution

The fourth proportional to 11,639.28, 16,062.36 and 6,603.12 is: 9,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.28 : 16,062.36 = 6,603.12 : x
  2. Step 2: Convert to fraction form
    11,639.28/16,062.36 = 6,603.12/x
  3. Step 3: Cross multiply
    11,639.28x = 16,062.36 × 6,603.12
  4. Step 4: Simplify right side
    11,639.28x = 106,061,690.56
  5. Step 5: Solve for x
    x = 106,061,690.56/11,639.28
  6. Step 6: Final answer
    x = 9,112.39

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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.