Home / 13,265.37-18,305.39-7,963.11

Finding the Fourth Proportional to 13,265.37, 18,305.39 and 7,963.11

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Solution

The fourth proportional to 13,265.37, 18,305.39 and 7,963.11 is: 10,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.37 : 18,305.39 = 7,963.11 : x
  2. Step 2: Convert to fraction form
    13,265.37/18,305.39 = 7,963.11/x
  3. Step 3: Cross multiply
    13,265.37x = 18,305.39 × 7,963.11
  4. Step 4: Simplify right side
    13,265.37x = 145,767,834.16
  5. Step 5: Solve for x
    x = 145,767,834.16/13,265.37
  6. Step 6: Final answer
    x = 10,988.60

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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.