Home / 8,966.61-13,439.52-7,928.64

Finding the Fourth Proportional to 8,966.61, 13,439.52 and 7,928.64

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Solution

The fourth proportional to 8,966.61, 13,439.52 and 7,928.64 is: 11,883.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.61 : 13,439.52 = 7,928.64 : x
  2. Step 2: Convert to fraction form
    8,966.61/13,439.52 = 7,928.64/x
  3. Step 3: Cross multiply
    8,966.61x = 13,439.52 × 7,928.64
  4. Step 4: Simplify right side
    8,966.61x = 106,557,115.85
  5. Step 5: Solve for x
    x = 106,557,115.85/8,966.61
  6. Step 6: Final answer
    x = 11,883.77

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1.5x scale

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.