Home / 18,639.90-27,960.18-4,599.96

Finding the Fourth Proportional to 18,639.90, 27,960.18 and 4,599.96

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Solution

The fourth proportional to 18,639.90, 27,960.18 and 4,599.96 is: 6,900.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639.90 : 27,960.18 = 4,599.96 : x
  2. Step 2: Convert to fraction form
    18,639.90/27,960.18 = 4,599.96/x
  3. Step 3: Cross multiply
    18,639.90x = 27,960.18 × 4,599.96
  4. Step 4: Simplify right side
    18,639.90x = 128,615,709.59
  5. Step 5: Solve for x
    x = 128,615,709.59/18,639.90
  6. Step 6: Final answer
    x = 6,900.02

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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.