Home / 13,173.57-18,178.22-7,798.01

Finding the Fourth Proportional to 13,173.57, 18,178.22 and 7,798.01

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Solution

The fourth proportional to 13,173.57, 18,178.22 and 7,798.01 is: 10,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.57 : 18,178.22 = 7,798.01 : x
  2. Step 2: Convert to fraction form
    13,173.57/18,178.22 = 7,798.01/x
  3. Step 3: Cross multiply
    13,173.57x = 18,178.22 × 7,798.01
  4. Step 4: Simplify right side
    13,173.57x = 141,753,869.95
  5. Step 5: Solve for x
    x = 141,753,869.95/13,173.57
  6. Step 6: Final answer
    x = 10,760.47

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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.