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Finding the Fourth Proportional to 14,325.21, 19,769.37 and 7,865.10

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Solution

The fourth proportional to 14,325.21, 19,769.37 and 7,865.10 is: 10,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,325.21 : 19,769.37 = 7,865.10 : x
  2. Step 2: Convert to fraction form
    14,325.21/19,769.37 = 7,865.10/x
  3. Step 3: Cross multiply
    14,325.21x = 19,769.37 × 7,865.10
  4. Step 4: Simplify right side
    14,325.21x = 155,488,042.49
  5. Step 5: Solve for x
    x = 155,488,042.49/14,325.21
  6. Step 6: Final answer
    x = 10,854.15

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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.