Home / 15,781.80-23,668.63-4,685.98

Finding the Fourth Proportional to 15,781.80, 23,668.63 and 4,685.98

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Solution

The fourth proportional to 15,781.80, 23,668.63 and 4,685.98 is: 7,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.80 : 23,668.63 = 4,685.98 : x
  2. Step 2: Convert to fraction form
    15,781.80/23,668.63 = 4,685.98/x
  3. Step 3: Cross multiply
    15,781.80x = 23,668.63 × 4,685.98
  4. Step 4: Simplify right side
    15,781.80x = 110,910,715.09
  5. Step 5: Solve for x
    x = 110,910,715.09/15,781.80
  6. Step 6: Final answer
    x = 7,027.76

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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.