Home / 9,729.50-13,427.34-5,537.75

Finding the Fourth Proportional to 9,729.50, 13,427.34 and 5,537.75

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Solution

The fourth proportional to 9,729.50, 13,427.34 and 5,537.75 is: 7,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.50 : 13,427.34 = 5,537.75 : x
  2. Step 2: Convert to fraction form
    9,729.50/13,427.34 = 5,537.75/x
  3. Step 3: Cross multiply
    9,729.50x = 13,427.34 × 5,537.75
  4. Step 4: Simplify right side
    9,729.50x = 74,357,252.09
  5. Step 5: Solve for x
    x = 74,357,252.09/9,729.50
  6. Step 6: Final answer
    x = 7,642.45

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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.