Home / 12,700.26-19,054.86-5,679.66

Finding the Fourth Proportional to 12,700.26, 19,054.86 and 5,679.66

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Solution

The fourth proportional to 12,700.26, 19,054.86 and 5,679.66 is: 8,521.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.26 : 19,054.86 = 5,679.66 : x
  2. Step 2: Convert to fraction form
    12,700.26/19,054.86 = 5,679.66/x
  3. Step 3: Cross multiply
    12,700.26x = 19,054.86 × 5,679.66
  4. Step 4: Simplify right side
    12,700.26x = 108,225,126.15
  5. Step 5: Solve for x
    x = 108,225,126.15/12,700.26
  6. Step 6: Final answer
    x = 8,521.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.