Home / 12,691,010.82-17,513,500.89-6,889,643.40

Finding the Fourth Proportional to 12,691,010.82, 17,513,500.89 and 6,889,643.40

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Solution

The fourth proportional to 12,691,010.82, 17,513,500.89 and 6,889,643.40 is: 9,507,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691,010.82 : 17,513,500.89 = 6,889,643.40 : x
  2. Step 2: Convert to fraction form
    12,691,010.82/17,513,500.89 = 6,889,643.40/x
  3. Step 3: Cross multiply
    12,691,010.82x = 17,513,500.89 × 6,889,643.40
  4. Step 4: Simplify right side
    12,691,010.82x = 120,661,775,904,151
  5. Step 5: Solve for x
    x = 120,661,775,904,151/12,691,010.82
  6. Step 6: Final answer
    x = 9,507,656.84

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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.