Home / 13,911.97-19,207.29-9,661.67

Finding the Fourth Proportional to 13,911.97, 19,207.29 and 9,661.67

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Solution

The fourth proportional to 13,911.97, 19,207.29 and 9,661.67 is: 13,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.97 : 19,207.29 = 9,661.67 : x
  2. Step 2: Convert to fraction form
    13,911.97/19,207.29 = 9,661.67/x
  3. Step 3: Cross multiply
    13,911.97x = 19,207.29 × 9,661.67
  4. Step 4: Simplify right side
    13,911.97x = 185,574,497.57
  5. Step 5: Solve for x
    x = 185,574,497.57/13,911.97
  6. Step 6: Final answer
    x = 13,339.20

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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.