Home / 18,900.36-26,082.47-11,727.61

Finding the Fourth Proportional to 18,900.36, 26,082.47 and 11,727.61

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Solution

The fourth proportional to 18,900.36, 26,082.47 and 11,727.61 is: 16,184.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.36 : 26,082.47 = 11,727.61 : x
  2. Step 2: Convert to fraction form
    18,900.36/26,082.47 = 11,727.61/x
  3. Step 3: Cross multiply
    18,900.36x = 26,082.47 × 11,727.61
  4. Step 4: Simplify right side
    18,900.36x = 305,885,000.11
  5. Step 5: Solve for x
    x = 305,885,000.11/18,900.36
  6. Step 6: Final answer
    x = 16,184.08

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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.