Home / 12,521.07-18,791.39-5,505.93

Finding the Fourth Proportional to 12,521.07, 18,791.39 and 5,505.93

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Solution

The fourth proportional to 12,521.07, 18,791.39 and 5,505.93 is: 8,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.07 : 18,791.39 = 5,505.93 : x
  2. Step 2: Convert to fraction form
    12,521.07/18,791.39 = 5,505.93/x
  3. Step 3: Cross multiply
    12,521.07x = 18,791.39 × 5,505.93
  4. Step 4: Simplify right side
    12,521.07x = 103,464,077.94
  5. Step 5: Solve for x
    x = 103,464,077.94/12,521.07
  6. Step 6: Final answer
    x = 8,263.20

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1.5x scale

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.