Home / 9,903.06-13,666.14-5,427.09

Finding the Fourth Proportional to 9,903.06, 13,666.14 and 5,427.09

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Solution

The fourth proportional to 9,903.06, 13,666.14 and 5,427.09 is: 7,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.06 : 13,666.14 = 5,427.09 : x
  2. Step 2: Convert to fraction form
    9,903.06/13,666.14 = 5,427.09/x
  3. Step 3: Cross multiply
    9,903.06x = 13,666.14 × 5,427.09
  4. Step 4: Simplify right side
    9,903.06x = 74,167,371.73
  5. Step 5: Solve for x
    x = 74,167,371.73/9,903.06
  6. Step 6: Final answer
    x = 7,489.34

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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.