Home / 12,997,213.25-17,937,357.64-7,195,994.98

Finding the Fourth Proportional to 12,997,213.25, 17,937,357.64 and 7,195,994.98

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Solution

The fourth proportional to 12,997,213.25, 17,937,357.64 and 7,195,994.98 is: 9,931,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,213.25 : 17,937,357.64 = 7,195,994.98 : x
  2. Step 2: Convert to fraction form
    12,997,213.25/17,937,357.64 = 7,195,994.98/x
  3. Step 3: Cross multiply
    12,997,213.25x = 17,937,357.64 × 7,195,994.98
  4. Step 4: Simplify right side
    12,997,213.25x = 129,077,135,469,071.27
  5. Step 5: Solve for x
    x = 129,077,135,469,071.27/12,997,213.25
  6. Step 6: Final answer
    x = 9,931,139.32

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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.