Home / 13,247.66-19,871.42-3,386.92

Finding the Fourth Proportional to 13,247.66, 19,871.42 and 3,386.92

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Solution

The fourth proportional to 13,247.66, 19,871.42 and 3,386.92 is: 5,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.66 : 19,871.42 = 3,386.92 : x
  2. Step 2: Convert to fraction form
    13,247.66/19,871.42 = 3,386.92/x
  3. Step 3: Cross multiply
    13,247.66x = 19,871.42 × 3,386.92
  4. Step 4: Simplify right side
    13,247.66x = 67,302,909.83
  5. Step 5: Solve for x
    x = 67,302,909.83/13,247.66
  6. Step 6: Final answer
    x = 5,080.36

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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.