Home / 13,370.22-19,974.07-8,651.79

Finding the Fourth Proportional to 13,370.22, 19,974.07 and 8,651.79

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Solution

The fourth proportional to 13,370.22, 19,974.07 and 8,651.79 is: 12,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.22 : 19,974.07 = 8,651.79 : x
  2. Step 2: Convert to fraction form
    13,370.22/19,974.07 = 8,651.79/x
  3. Step 3: Cross multiply
    13,370.22x = 19,974.07 × 8,651.79
  4. Step 4: Simplify right side
    13,370.22x = 172,811,480.71
  5. Step 5: Solve for x
    x = 172,811,480.71/13,370.22
  6. Step 6: Final answer
    x = 12,925.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.