Home / 9,618.70-13,273.05-5,427.70

Finding the Fourth Proportional to 9,618.70, 13,273.05 and 5,427.70

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Solution

The fourth proportional to 9,618.70, 13,273.05 and 5,427.70 is: 7,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,618.70 : 13,273.05 = 5,427.70 : x
  2. Step 2: Convert to fraction form
    9,618.70/13,273.05 = 5,427.70/x
  3. Step 3: Cross multiply
    9,618.70x = 13,273.05 × 5,427.70
  4. Step 4: Simplify right side
    9,618.70x = 72,042,133.49
  5. Step 5: Solve for x
    x = 72,042,133.49/9,618.70
  6. Step 6: Final answer
    x = 7,489.80

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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.