Home / 12,689,082.03-17,510,813.60-6,887,739.63

Finding the Fourth Proportional to 12,689,082.03, 17,510,813.60 and 6,887,739.63

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Solution

The fourth proportional to 12,689,082.03, 17,510,813.60 and 6,887,739.63 is: 9,505,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,082.03 : 17,510,813.60 = 6,887,739.63 : x
  2. Step 2: Convert to fraction form
    12,689,082.03/17,510,813.60 = 6,887,739.63/x
  3. Step 3: Cross multiply
    12,689,082.03x = 17,510,813.60 × 6,887,739.63
  4. Step 4: Simplify right side
    12,689,082.03x = 120,609,924,751,824.27
  5. Step 5: Solve for x
    x = 120,609,924,751,824.27/12,689,082.03
  6. Step 6: Final answer
    x = 9,505,015.77

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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.