Home / 10,072.40-13,901.90-6,436.12

Finding the Fourth Proportional to 10,072.40, 13,901.90 and 6,436.12

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Solution

The fourth proportional to 10,072.40, 13,901.90 and 6,436.12 is: 8,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.40 : 13,901.90 = 6,436.12 : x
  2. Step 2: Convert to fraction form
    10,072.40/13,901.90 = 6,436.12/x
  3. Step 3: Cross multiply
    10,072.40x = 13,901.90 × 6,436.12
  4. Step 4: Simplify right side
    10,072.40x = 89,474,296.63
  5. Step 5: Solve for x
    x = 89,474,296.63/10,072.40
  6. Step 6: Final answer
    x = 8,883.12

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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.