Home / 13,952.36-19,255.64-7,985.09

Finding the Fourth Proportional to 13,952.36, 19,255.64 and 7,985.09

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Solution

The fourth proportional to 13,952.36, 19,255.64 and 7,985.09 is: 11,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.36 : 19,255.64 = 7,985.09 : x
  2. Step 2: Convert to fraction form
    13,952.36/19,255.64 = 7,985.09/x
  3. Step 3: Cross multiply
    13,952.36x = 19,255.64 × 7,985.09
  4. Step 4: Simplify right side
    13,952.36x = 153,757,882.20
  5. Step 5: Solve for x
    x = 153,757,882.20/13,952.36
  6. Step 6: Final answer
    x = 11,020.21

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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.