Home / 13,299.17-18,353.25-7,331.22

Finding the Fourth Proportional to 13,299.17, 18,353.25 and 7,331.22

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Solution

The fourth proportional to 13,299.17, 18,353.25 and 7,331.22 is: 10,117.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.17 : 18,353.25 = 7,331.22 : x
  2. Step 2: Convert to fraction form
    13,299.17/18,353.25 = 7,331.22/x
  3. Step 3: Cross multiply
    13,299.17x = 18,353.25 × 7,331.22
  4. Step 4: Simplify right side
    13,299.17x = 134,551,713.47
  5. Step 5: Solve for x
    x = 134,551,713.47/13,299.17
  6. Step 6: Final answer
    x = 10,117.31

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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.