Home / 9,857.40-13,603.26-5,381.25

Finding the Fourth Proportional to 9,857.40, 13,603.26 and 5,381.25

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Solution

The fourth proportional to 9,857.40, 13,603.26 and 5,381.25 is: 7,426.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,857.40 : 13,603.26 = 5,381.25 : x
  2. Step 2: Convert to fraction form
    9,857.40/13,603.26 = 5,381.25/x
  3. Step 3: Cross multiply
    9,857.40x = 13,603.26 × 5,381.25
  4. Step 4: Simplify right side
    9,857.40x = 73,202,542.88
  5. Step 5: Solve for x
    x = 73,202,542.88/9,857.40
  6. Step 6: Final answer
    x = 7,426.15

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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.