Home / 19,019.20-28,521.78-6,535.90

Finding the Fourth Proportional to 19,019.20, 28,521.78 and 6,535.90

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Solution

The fourth proportional to 19,019.20, 28,521.78 and 6,535.90 is: 9,801.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.20 : 28,521.78 = 6,535.90 : x
  2. Step 2: Convert to fraction form
    19,019.20/28,521.78 = 6,535.90/x
  3. Step 3: Cross multiply
    19,019.20x = 28,521.78 × 6,535.90
  4. Step 4: Simplify right side
    19,019.20x = 186,415,501.90
  5. Step 5: Solve for x
    x = 186,415,501.90/19,019.20
  6. Step 6: Final answer
    x = 9,801.44

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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.