Home / 13,205.29-18,223.69-7,237.35

Finding the Fourth Proportional to 13,205.29, 18,223.69 and 7,237.35

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Solution

The fourth proportional to 13,205.29, 18,223.69 and 7,237.35 is: 9,987.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.29 : 18,223.69 = 7,237.35 : x
  2. Step 2: Convert to fraction form
    13,205.29/18,223.69 = 7,237.35/x
  3. Step 3: Cross multiply
    13,205.29x = 18,223.69 × 7,237.35
  4. Step 4: Simplify right side
    13,205.29x = 131,891,165.73
  5. Step 5: Solve for x
    x = 131,891,165.73/13,205.29
  6. Step 6: Final answer
    x = 9,987.75

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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.