Home / 18,923.04-28,384.56-8,537.76

Finding the Fourth Proportional to 18,923.04, 28,384.56 and 8,537.76

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Solution

The fourth proportional to 18,923.04, 28,384.56 and 8,537.76 is: 12,806.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.04 : 28,384.56 = 8,537.76 : x
  2. Step 2: Convert to fraction form
    18,923.04/28,384.56 = 8,537.76/x
  3. Step 3: Cross multiply
    18,923.04x = 28,384.56 × 8,537.76
  4. Step 4: Simplify right side
    18,923.04x = 242,340,560.99
  5. Step 5: Solve for x
    x = 242,340,560.99/18,923.04
  6. Step 6: Final answer
    x = 12,806.64

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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.