Home / 12,816.36-19,225.13-3,931.04

Finding the Fourth Proportional to 12,816.36, 19,225.13 and 3,931.04

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Solution

The fourth proportional to 12,816.36, 19,225.13 and 3,931.04 is: 5,896.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.36 : 19,225.13 = 3,931.04 : x
  2. Step 2: Convert to fraction form
    12,816.36/19,225.13 = 3,931.04/x
  3. Step 3: Cross multiply
    12,816.36x = 19,225.13 × 3,931.04
  4. Step 4: Simplify right side
    12,816.36x = 75,574,755.04
  5. Step 5: Solve for x
    x = 75,574,755.04/12,816.36
  6. Step 6: Final answer
    x = 5,896.74

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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.