Home / 9,903.90-13,666.92-5,427.54

Finding the Fourth Proportional to 9,903.90, 13,666.92 and 5,427.54

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Solution

The fourth proportional to 9,903.90, 13,666.92 and 5,427.54 is: 7,489.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.90 : 13,666.92 = 5,427.54 : x
  2. Step 2: Convert to fraction form
    9,903.90/13,666.92 = 5,427.54/x
  3. Step 3: Cross multiply
    9,903.90x = 13,666.92 × 5,427.54
  4. Step 4: Simplify right side
    9,903.90x = 74,177,754.98
  5. Step 5: Solve for x
    x = 74,177,754.98/9,903.90
  6. Step 6: Final answer
    x = 7,489.75

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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.