Home / 9,789.84-13,496.76-6,640.56

Finding the Fourth Proportional to 9,789.84, 13,496.76 and 6,640.56

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Solution

The fourth proportional to 9,789.84, 13,496.76 and 6,640.56 is: 9,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.84 : 13,496.76 = 6,640.56 : x
  2. Step 2: Convert to fraction form
    9,789.84/13,496.76 = 6,640.56/x
  3. Step 3: Cross multiply
    9,789.84x = 13,496.76 × 6,640.56
  4. Step 4: Simplify right side
    9,789.84x = 89,626,044.59
  5. Step 5: Solve for x
    x = 89,626,044.59/9,789.84
  6. Step 6: Final answer
    x = 9,155.01

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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.