Home / 19,074.28-28,605.84-7,384.72

Finding the Fourth Proportional to 19,074.28, 28,605.84 and 7,384.72

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Solution

The fourth proportional to 19,074.28, 28,605.84 and 7,384.72 is: 11,074.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.28 : 28,605.84 = 7,384.72 : x
  2. Step 2: Convert to fraction form
    19,074.28/28,605.84 = 7,384.72/x
  3. Step 3: Cross multiply
    19,074.28x = 28,605.84 × 7,384.72
  4. Step 4: Simplify right side
    19,074.28x = 211,246,118.76
  5. Step 5: Solve for x
    x = 211,246,118.76/19,074.28
  6. Step 6: Final answer
    x = 11,074.92

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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.