Home / 19,002.45-28,503.66-5,151.45

Finding the Fourth Proportional to 19,002.45, 28,503.66 and 5,151.45

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Solution

The fourth proportional to 19,002.45, 28,503.66 and 5,151.45 is: 7,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.45 : 28,503.66 = 5,151.45 : x
  2. Step 2: Convert to fraction form
    19,002.45/28,503.66 = 5,151.45/x
  3. Step 3: Cross multiply
    19,002.45x = 28,503.66 × 5,151.45
  4. Step 4: Simplify right side
    19,002.45x = 146,835,179.31
  5. Step 5: Solve for x
    x = 146,835,179.31/19,002.45
  6. Step 6: Final answer
    x = 7,727.17

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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.