Home / 18,981.49-28,468.45-6,500.47

Finding the Fourth Proportional to 18,981.49, 28,468.45 and 6,500.47

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Solution

The fourth proportional to 18,981.49, 28,468.45 and 6,500.47 is: 9,749.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981.49 : 28,468.45 = 6,500.47 : x
  2. Step 2: Convert to fraction form
    18,981.49/28,468.45 = 6,500.47/x
  3. Step 3: Cross multiply
    18,981.49x = 28,468.45 × 6,500.47
  4. Step 4: Simplify right side
    18,981.49x = 185,058,217.75
  5. Step 5: Solve for x
    x = 185,058,217.75/18,981.49
  6. Step 6: Final answer
    x = 9,749.41

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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.