Home / 19,311.88-26,632.15-12,602.65

Finding the Fourth Proportional to 19,311.88, 26,632.15 and 12,602.65

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Solution

The fourth proportional to 19,311.88, 26,632.15 and 12,602.65 is: 17,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.88 : 26,632.15 = 12,602.65 : x
  2. Step 2: Convert to fraction form
    19,311.88/26,632.15 = 12,602.65/x
  3. Step 3: Cross multiply
    19,311.88x = 26,632.15 × 12,602.65
  4. Step 4: Simplify right side
    19,311.88x = 335,635,665.20
  5. Step 5: Solve for x
    x = 335,635,665.20/19,311.88
  6. Step 6: Final answer
    x = 17,379.75

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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.