Home / 14,123.24-19,488.64-8,456.84

Finding the Fourth Proportional to 14,123.24, 19,488.64 and 8,456.84

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Solution

The fourth proportional to 14,123.24, 19,488.64 and 8,456.84 is: 11,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.24 : 19,488.64 = 8,456.84 : x
  2. Step 2: Convert to fraction form
    14,123.24/19,488.64 = 8,456.84/x
  3. Step 3: Cross multiply
    14,123.24x = 19,488.64 × 8,456.84
  4. Step 4: Simplify right side
    14,123.24x = 164,812,310.30
  5. Step 5: Solve for x
    x = 164,812,310.30/14,123.24
  6. Step 6: Final answer
    x = 11,669.58

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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.