Home / 13,073.88-18,041.80-7,105.28

Finding the Fourth Proportional to 13,073.88, 18,041.80 and 7,105.28

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Solution

The fourth proportional to 13,073.88, 18,041.80 and 7,105.28 is: 9,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.88 : 18,041.80 = 7,105.28 : x
  2. Step 2: Convert to fraction form
    13,073.88/18,041.80 = 7,105.28/x
  3. Step 3: Cross multiply
    13,073.88x = 18,041.80 × 7,105.28
  4. Step 4: Simplify right side
    13,073.88x = 128,192,040.70
  5. Step 5: Solve for x
    x = 128,192,040.70/13,073.88
  6. Step 6: Final answer
    x = 9,805.20

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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.