Home / 7,839.29-11,740.64-6,807.75

Finding the Fourth Proportional to 7,839.29, 11,740.64 and 6,807.75

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Solution

The fourth proportional to 7,839.29, 11,740.64 and 6,807.75 is: 10,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.29 : 11,740.64 = 6,807.75 : x
  2. Step 2: Convert to fraction form
    7,839.29/11,740.64 = 6,807.75/x
  3. Step 3: Cross multiply
    7,839.29x = 11,740.64 × 6,807.75
  4. Step 4: Simplify right side
    7,839.29x = 79,927,307.92
  5. Step 5: Solve for x
    x = 79,927,307.92/7,839.29
  6. Step 6: Final answer
    x = 10,195.74

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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.