Home / 9,813.60-13,544.88-6,456.72

Finding the Fourth Proportional to 9,813.60, 13,544.88 and 6,456.72

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Solution

The fourth proportional to 9,813.60, 13,544.88 and 6,456.72 is: 8,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,813.60 : 13,544.88 = 6,456.72 : x
  2. Step 2: Convert to fraction form
    9,813.60/13,544.88 = 6,456.72/x
  3. Step 3: Cross multiply
    9,813.60x = 13,544.88 × 6,456.72
  4. Step 4: Simplify right side
    9,813.60x = 87,455,497.59
  5. Step 5: Solve for x
    x = 87,455,497.59/9,813.60
  6. Step 6: Final answer
    x = 8,911.66

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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.