Home / 15,190.57-20,960.48-10,146.70

Finding the Fourth Proportional to 15,190.57, 20,960.48 and 10,146.70

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Solution

The fourth proportional to 15,190.57, 20,960.48 and 10,146.70 is: 14,000.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.57 : 20,960.48 = 10,146.70 : x
  2. Step 2: Convert to fraction form
    15,190.57/20,960.48 = 10,146.70/x
  3. Step 3: Cross multiply
    15,190.57x = 20,960.48 × 10,146.70
  4. Step 4: Simplify right side
    15,190.57x = 212,679,651.68
  5. Step 5: Solve for x
    x = 212,679,651.68/15,190.57
  6. Step 6: Final answer
    x = 14,000.77

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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.