Home / 8,140.11-12,211.95-3,464.08

Finding the Fourth Proportional to 8,140.11, 12,211.95 and 3,464.08

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Solution

The fourth proportional to 8,140.11, 12,211.95 and 3,464.08 is: 5,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.11 : 12,211.95 = 3,464.08 : x
  2. Step 2: Convert to fraction form
    8,140.11/12,211.95 = 3,464.08/x
  3. Step 3: Cross multiply
    8,140.11x = 12,211.95 × 3,464.08
  4. Step 4: Simplify right side
    8,140.11x = 42,303,218.04
  5. Step 5: Solve for x
    x = 42,303,218.04/8,140.11
  6. Step 6: Final answer
    x = 5,196.89

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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.