Home / 7,812.08-11,708.88-4,112.40

Finding the Fourth Proportional to 7,812.08, 11,708.88 and 4,112.40

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Solution

The fourth proportional to 7,812.08, 11,708.88 and 4,112.40 is: 6,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.08 : 11,708.88 = 4,112.40 : x
  2. Step 2: Convert to fraction form
    7,812.08/11,708.88 = 4,112.40/x
  3. Step 3: Cross multiply
    7,812.08x = 11,708.88 × 4,112.40
  4. Step 4: Simplify right side
    7,812.08x = 48,151,598.11
  5. Step 5: Solve for x
    x = 48,151,598.11/7,812.08
  6. Step 6: Final answer
    x = 6,163.74

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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.