Home / 18,947.04-28,411.68-6,463.68

Finding the Fourth Proportional to 18,947.04, 28,411.68 and 6,463.68

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Solution

The fourth proportional to 18,947.04, 28,411.68 and 6,463.68 is: 9,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.04 : 28,411.68 = 6,463.68 : x
  2. Step 2: Convert to fraction form
    18,947.04/28,411.68 = 6,463.68/x
  3. Step 3: Cross multiply
    18,947.04x = 28,411.68 × 6,463.68
  4. Step 4: Simplify right side
    18,947.04x = 183,644,007.78
  5. Step 5: Solve for x
    x = 183,644,007.78/18,947.04
  6. Step 6: Final answer
    x = 9,692.49

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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.