Home / 14,218.92-19,622.28-7,931.29

Finding the Fourth Proportional to 14,218.92, 19,622.28 and 7,931.29

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Solution

The fourth proportional to 14,218.92, 19,622.28 and 7,931.29 is: 10,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.92 : 19,622.28 = 7,931.29 : x
  2. Step 2: Convert to fraction form
    14,218.92/19,622.28 = 7,931.29/x
  3. Step 3: Cross multiply
    14,218.92x = 19,622.28 × 7,931.29
  4. Step 4: Simplify right side
    14,218.92x = 155,629,993.14
  5. Step 5: Solve for x
    x = 155,629,993.14/14,218.92
  6. Step 6: Final answer
    x = 10,945.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.