Home / 9,902.49-13,665.79-5,426.23

Finding the Fourth Proportional to 9,902.49, 13,665.79 and 5,426.23

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Solution

The fourth proportional to 9,902.49, 13,665.79 and 5,426.23 is: 7,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,902.49 : 13,665.79 = 5,426.23 : x
  2. Step 2: Convert to fraction form
    9,902.49/13,665.79 = 5,426.23/x
  3. Step 3: Cross multiply
    9,902.49x = 13,665.79 × 5,426.23
  4. Step 4: Simplify right side
    9,902.49x = 74,153,692.54
  5. Step 5: Solve for x
    x = 74,153,692.54/9,902.49
  6. Step 6: Final answer
    x = 7,488.39

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Half scale
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Double scale
Find fourth proportional to 9,903.49, 13,667.17 and 5,427.23
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.