Home / 12,078.81-18,097.70-5,841.75

Finding the Fourth Proportional to 12,078.81, 18,097.70 and 5,841.75

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Solution

The fourth proportional to 12,078.81, 18,097.70 and 5,841.75 is: 8,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.81 : 18,097.70 = 5,841.75 : x
  2. Step 2: Convert to fraction form
    12,078.81/18,097.70 = 5,841.75/x
  3. Step 3: Cross multiply
    12,078.81x = 18,097.70 × 5,841.75
  4. Step 4: Simplify right side
    12,078.81x = 105,722,209.77
  5. Step 5: Solve for x
    x = 105,722,209.77/12,078.81
  6. Step 6: Final answer
    x = 8,752.70

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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.