Home / 13,320.24-18,382.98-7,353.06

Finding the Fourth Proportional to 13,320.24, 18,382.98 and 7,353.06

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Solution

The fourth proportional to 13,320.24, 18,382.98 and 7,353.06 is: 10,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.24 : 18,382.98 = 7,353.06 : x
  2. Step 2: Convert to fraction form
    13,320.24/18,382.98 = 7,353.06/x
  3. Step 3: Cross multiply
    13,320.24x = 18,382.98 × 7,353.06
  4. Step 4: Simplify right side
    13,320.24x = 135,171,154.92
  5. Step 5: Solve for x
    x = 135,171,154.92/13,320.24
  6. Step 6: Final answer
    x = 10,147.80

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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.