Home / 13,165.57-19,756.45-11,935.18

Finding the Fourth Proportional to 13,165.57, 19,756.45 and 11,935.18

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Solution

The fourth proportional to 13,165.57, 19,756.45 and 11,935.18 is: 17,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.57 : 19,756.45 = 11,935.18 : x
  2. Step 2: Convert to fraction form
    13,165.57/19,756.45 = 11,935.18/x
  3. Step 3: Cross multiply
    13,165.57x = 19,756.45 × 11,935.18
  4. Step 4: Simplify right side
    13,165.57x = 235,796,688.13
  5. Step 5: Solve for x
    x = 235,796,688.13/13,165.57
  6. Step 6: Final answer
    x = 17,910.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.