Home / 13,723.64-18,937.68-7,755.56

Finding the Fourth Proportional to 13,723.64, 18,937.68 and 7,755.56

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Solution

The fourth proportional to 13,723.64, 18,937.68 and 7,755.56 is: 10,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.64 : 18,937.68 = 7,755.56 : x
  2. Step 2: Convert to fraction form
    13,723.64/18,937.68 = 7,755.56/x
  3. Step 3: Cross multiply
    13,723.64x = 18,937.68 × 7,755.56
  4. Step 4: Simplify right side
    13,723.64x = 146,872,313.50
  5. Step 5: Solve for x
    x = 146,872,313.50/13,723.64
  6. Step 6: Final answer
    x = 10,702.14

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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.