Home / 9,678.53-13,357.56-5,902.85

Finding the Fourth Proportional to 9,678.53, 13,357.56 and 5,902.85

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Solution

The fourth proportional to 9,678.53, 13,357.56 and 5,902.85 is: 8,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.53 : 13,357.56 = 5,902.85 : x
  2. Step 2: Convert to fraction form
    9,678.53/13,357.56 = 5,902.85/x
  3. Step 3: Cross multiply
    9,678.53x = 13,357.56 × 5,902.85
  4. Step 4: Simplify right side
    9,678.53x = 78,847,606.26
  5. Step 5: Solve for x
    x = 78,847,606.26/9,678.53
  6. Step 6: Final answer
    x = 8,146.66

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Half scale
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Double scale
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Similar ratio
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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.