Home / 9,790.59-13,501.09-8,378.97

Finding the Fourth Proportional to 9,790.59, 13,501.09 and 8,378.97

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Solution

The fourth proportional to 9,790.59, 13,501.09 and 8,378.97 is: 11,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,790.59 : 13,501.09 = 8,378.97 : x
  2. Step 2: Convert to fraction form
    9,790.59/13,501.09 = 8,378.97/x
  3. Step 3: Cross multiply
    9,790.59x = 13,501.09 × 8,378.97
  4. Step 4: Simplify right side
    9,790.59x = 113,125,228.08
  5. Step 5: Solve for x
    x = 113,125,228.08/9,790.59
  6. Step 6: Final answer
    x = 11,554.49

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Half scale
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Double scale
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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.