Home / 14,123.36-21,167.40-8,930.72

Finding the Fourth Proportional to 14,123.36, 21,167.40 and 8,930.72

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Solution

The fourth proportional to 14,123.36, 21,167.40 and 8,930.72 is: 13,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.36 : 21,167.40 = 8,930.72 : x
  2. Step 2: Convert to fraction form
    14,123.36/21,167.40 = 8,930.72/x
  3. Step 3: Cross multiply
    14,123.36x = 21,167.40 × 8,930.72
  4. Step 4: Simplify right side
    14,123.36x = 189,040,122.53
  5. Step 5: Solve for x
    x = 189,040,122.53/14,123.36
  6. Step 6: Final answer
    x = 13,384.93

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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.