Home / 14,123.14-19,487.91-8,456.53

Finding the Fourth Proportional to 14,123.14, 19,487.91 and 8,456.53

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Solution

The fourth proportional to 14,123.14, 19,487.91 and 8,456.53 is: 11,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.14 : 19,487.91 = 8,456.53 : x
  2. Step 2: Convert to fraction form
    14,123.14/19,487.91 = 8,456.53/x
  3. Step 3: Cross multiply
    14,123.14x = 19,487.91 × 8,456.53
  4. Step 4: Simplify right side
    14,123.14x = 164,800,095.55
  5. Step 5: Solve for x
    x = 164,800,095.55/14,123.14
  6. Step 6: Final answer
    x = 11,668.80

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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.