Home / 19,012.27-28,518.40-7,924.18

Finding the Fourth Proportional to 19,012.27, 28,518.40 and 7,924.18

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Solution

The fourth proportional to 19,012.27, 28,518.40 and 7,924.18 is: 11,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,012.27 : 28,518.40 = 7,924.18 : x
  2. Step 2: Convert to fraction form
    19,012.27/28,518.40 = 7,924.18/x
  3. Step 3: Cross multiply
    19,012.27x = 28,518.40 × 7,924.18
  4. Step 4: Simplify right side
    19,012.27x = 225,984,934.91
  5. Step 5: Solve for x
    x = 225,984,934.91/19,012.27
  6. Step 6: Final answer
    x = 11,886.27

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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.