Home / 12,790,493.38-17,650,926.69-6,989,275.06

Finding the Fourth Proportional to 12,790,493.38, 17,650,926.69 and 6,989,275.06

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Solution

The fourth proportional to 12,790,493.38, 17,650,926.69 and 6,989,275.06 is: 9,645,224.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,493.38 : 17,650,926.69 = 6,989,275.06 : x
  2. Step 2: Convert to fraction form
    12,790,493.38/17,650,926.69 = 6,989,275.06/x
  3. Step 3: Cross multiply
    12,790,493.38x = 17,650,926.69 × 6,989,275.06
  4. Step 4: Simplify right side
    12,790,493.38x = 123,367,181,700,305.36
  5. Step 5: Solve for x
    x = 123,367,181,700,305.36/12,790,493.38
  6. Step 6: Final answer
    x = 9,645,224.62

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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.