Home / 10,813.80-14,917.68-6,984.12

Finding the Fourth Proportional to 10,813.80, 14,917.68 and 6,984.12

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Solution

The fourth proportional to 10,813.80, 14,917.68 and 6,984.12 is: 9,634.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813.80 : 14,917.68 = 6,984.12 : x
  2. Step 2: Convert to fraction form
    10,813.80/14,917.68 = 6,984.12/x
  3. Step 3: Cross multiply
    10,813.80x = 14,917.68 × 6,984.12
  4. Step 4: Simplify right side
    10,813.80x = 104,186,867.24
  5. Step 5: Solve for x
    x = 104,186,867.24/10,813.80
  6. Step 6: Final answer
    x = 9,634.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.