Home / 11,640.79-16,064.76-6,925.78

Finding the Fourth Proportional to 11,640.79, 16,064.76 and 6,925.78

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Solution

The fourth proportional to 11,640.79, 16,064.76 and 6,925.78 is: 9,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.79 : 16,064.76 = 6,925.78 : x
  2. Step 2: Convert to fraction form
    11,640.79/16,064.76 = 6,925.78/x
  3. Step 3: Cross multiply
    11,640.79x = 16,064.76 × 6,925.78
  4. Step 4: Simplify right side
    11,640.79x = 111,260,993.51
  5. Step 5: Solve for x
    x = 111,260,993.51/11,640.79
  6. Step 6: Final answer
    x = 9,557.86

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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.