Home / 12,519.71-18,782.09-4,622.28

Finding the Fourth Proportional to 12,519.71, 18,782.09 and 4,622.28

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Solution

The fourth proportional to 12,519.71, 18,782.09 and 4,622.28 is: 6,934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.71 : 18,782.09 = 4,622.28 : x
  2. Step 2: Convert to fraction form
    12,519.71/18,782.09 = 4,622.28/x
  3. Step 3: Cross multiply
    12,519.71x = 18,782.09 × 4,622.28
  4. Step 4: Simplify right side
    12,519.71x = 86,816,073.19
  5. Step 5: Solve for x
    x = 86,816,073.19/12,519.71
  6. Step 6: Final answer
    x = 6,934.35

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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.