Home / 19,078.02-28,609.11-7,384.50

Finding the Fourth Proportional to 19,078.02, 28,609.11 and 7,384.50

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Solution

The fourth proportional to 19,078.02, 28,609.11 and 7,384.50 is: 11,073.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.02 : 28,609.11 = 7,384.50 : x
  2. Step 2: Convert to fraction form
    19,078.02/28,609.11 = 7,384.50/x
  3. Step 3: Cross multiply
    19,078.02x = 28,609.11 × 7,384.50
  4. Step 4: Simplify right side
    19,078.02x = 211,263,972.80
  5. Step 5: Solve for x
    x = 211,263,972.80/19,078.02
  6. Step 6: Final answer
    x = 11,073.68

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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.