Home / 14,123.36-19,491.12-8,156.12

Finding the Fourth Proportional to 14,123.36, 19,491.12 and 8,156.12

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Solution

The fourth proportional to 14,123.36, 19,491.12 and 8,156.12 is: 11,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.36 : 19,491.12 = 8,156.12 : x
  2. Step 2: Convert to fraction form
    14,123.36/19,491.12 = 8,156.12/x
  3. Step 3: Cross multiply
    14,123.36x = 19,491.12 × 8,156.12
  4. Step 4: Simplify right side
    14,123.36x = 158,971,913.65
  5. Step 5: Solve for x
    x = 158,971,913.65/14,123.36
  6. Step 6: Final answer
    x = 11,255.96

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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.