Home / 13,647.26-18,833.01-7,678.91

Finding the Fourth Proportional to 13,647.26, 18,833.01 and 7,678.91

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Solution

The fourth proportional to 13,647.26, 18,833.01 and 7,678.91 is: 10,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.26 : 18,833.01 = 7,678.91 : x
  2. Step 2: Convert to fraction form
    13,647.26/18,833.01 = 7,678.91/x
  3. Step 3: Cross multiply
    13,647.26x = 18,833.01 × 7,678.91
  4. Step 4: Simplify right side
    13,647.26x = 144,616,988.82
  5. Step 5: Solve for x
    x = 144,616,988.82/13,647.26
  6. Step 6: Final answer
    x = 10,596.78

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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.