Home / 19,565.07-26,991-13,189.61

Finding the Fourth Proportional to 19,565.07, 26,991 and 13,189.61

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Solution

The fourth proportional to 19,565.07, 26,991 and 13,189.61 is: 18,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,565.07 : 26,991 = 13,189.61 : x
  2. Step 2: Convert to fraction form
    19,565.07/26,991 = 13,189.61/x
  3. Step 3: Cross multiply
    19,565.07x = 26,991 × 13,189.61
  4. Step 4: Simplify right side
    19,565.07x = 356,000,763.51
  5. Step 5: Solve for x
    x = 356,000,763.51/19,565.07
  6. Step 6: Final answer
    x = 18,195.73

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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.