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Finding the Fourth Proportional to 14,397.69, 19,868.85 and 8,110.07

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Solution

The fourth proportional to 14,397.69, 19,868.85 and 8,110.07 is: 11,191.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.69 : 19,868.85 = 8,110.07 : x
  2. Step 2: Convert to fraction form
    14,397.69/19,868.85 = 8,110.07/x
  3. Step 3: Cross multiply
    14,397.69x = 19,868.85 × 8,110.07
  4. Step 4: Simplify right side
    14,397.69x = 161,137,624.42
  5. Step 5: Solve for x
    x = 161,137,624.42/14,397.69
  6. Step 6: Final answer
    x = 11,191.91

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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.