Home / 11,656.05-16,091.31-7,899.07

Finding the Fourth Proportional to 11,656.05, 16,091.31 and 7,899.07

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Solution

The fourth proportional to 11,656.05, 16,091.31 and 7,899.07 is: 10,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.05 : 16,091.31 = 7,899.07 : x
  2. Step 2: Convert to fraction form
    11,656.05/16,091.31 = 7,899.07/x
  3. Step 3: Cross multiply
    11,656.05x = 16,091.31 × 7,899.07
  4. Step 4: Simplify right side
    11,656.05x = 127,106,384.08
  5. Step 5: Solve for x
    x = 127,106,384.08/11,656.05
  6. Step 6: Final answer
    x = 10,904.76

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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.