Home / 15,190.83-20,960.82-10,146.96

Finding the Fourth Proportional to 15,190.83, 20,960.82 and 10,146.96

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Solution

The fourth proportional to 15,190.83, 20,960.82 and 10,146.96 is: 14,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.83 : 20,960.82 = 10,146.96 : x
  2. Step 2: Convert to fraction form
    15,190.83/20,960.82 = 10,146.96/x
  3. Step 3: Cross multiply
    15,190.83x = 20,960.82 × 10,146.96
  4. Step 4: Simplify right side
    15,190.83x = 212,688,602.11
  5. Step 5: Solve for x
    x = 212,688,602.11/15,190.83
  6. Step 6: Final answer
    x = 14,001.12

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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.