Home / 13,187.46-19,784.15-4,422.15

Finding the Fourth Proportional to 13,187.46, 19,784.15 and 4,422.15

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Solution

The fourth proportional to 13,187.46, 19,784.15 and 4,422.15 is: 6,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.46 : 19,784.15 = 4,422.15 : x
  2. Step 2: Convert to fraction form
    13,187.46/19,784.15 = 4,422.15/x
  3. Step 3: Cross multiply
    13,187.46x = 19,784.15 × 4,422.15
  4. Step 4: Simplify right side
    13,187.46x = 87,488,478.92
  5. Step 5: Solve for x
    x = 87,488,478.92/13,187.46
  6. Step 6: Final answer
    x = 6,634.22

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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.