Home / 18,767.58-28,143.06-5,617.50

Finding the Fourth Proportional to 18,767.58, 28,143.06 and 5,617.50

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Solution

The fourth proportional to 18,767.58, 28,143.06 and 5,617.50 is: 8,423.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.58 : 28,143.06 = 5,617.50 : x
  2. Step 2: Convert to fraction form
    18,767.58/28,143.06 = 5,617.50/x
  3. Step 3: Cross multiply
    18,767.58x = 28,143.06 × 5,617.50
  4. Step 4: Simplify right side
    18,767.58x = 158,093,639.55
  5. Step 5: Solve for x
    x = 158,093,639.55/18,767.58
  6. Step 6: Final answer
    x = 8,423.76

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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.