Home / 13,332.18-19,996.22-8,386.72

Finding the Fourth Proportional to 13,332.18, 19,996.22 and 8,386.72

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Solution

The fourth proportional to 13,332.18, 19,996.22 and 8,386.72 is: 12,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.18 : 19,996.22 = 8,386.72 : x
  2. Step 2: Convert to fraction form
    13,332.18/19,996.22 = 8,386.72/x
  3. Step 3: Cross multiply
    13,332.18x = 19,996.22 × 8,386.72
  4. Step 4: Simplify right side
    13,332.18x = 167,702,698.20
  5. Step 5: Solve for x
    x = 167,702,698.20/13,332.18
  6. Step 6: Final answer
    x = 12,578.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.