Home / 13,322.06-18,384.30-7,353.78

Finding the Fourth Proportional to 13,322.06, 18,384.30 and 7,353.78

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Solution

The fourth proportional to 13,322.06, 18,384.30 and 7,353.78 is: 10,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.06 : 18,384.30 = 7,353.78 : x
  2. Step 2: Convert to fraction form
    13,322.06/18,384.30 = 7,353.78/x
  3. Step 3: Cross multiply
    13,322.06x = 18,384.30 × 7,353.78
  4. Step 4: Simplify right side
    13,322.06x = 135,194,097.65
  5. Step 5: Solve for x
    x = 135,194,097.65/13,322.06
  6. Step 6: Final answer
    x = 10,148.14

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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.