Home / 9,427.49-13,010.11-5,178.94

Finding the Fourth Proportional to 9,427.49, 13,010.11 and 5,178.94

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Solution

The fourth proportional to 9,427.49, 13,010.11 and 5,178.94 is: 7,147.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.49 : 13,010.11 = 5,178.94 : x
  2. Step 2: Convert to fraction form
    9,427.49/13,010.11 = 5,178.94/x
  3. Step 3: Cross multiply
    9,427.49x = 13,010.11 × 5,178.94
  4. Step 4: Simplify right side
    9,427.49x = 67,378,526.33
  5. Step 5: Solve for x
    x = 67,378,526.33/9,427.49
  6. Step 6: Final answer
    x = 7,147.03

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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.