Home / 13,322.08-18,384.78-7,353.64

Finding the Fourth Proportional to 13,322.08, 18,384.78 and 7,353.64

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Solution

The fourth proportional to 13,322.08, 18,384.78 and 7,353.64 is: 10,148.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.08 : 18,384.78 = 7,353.64 : x
  2. Step 2: Convert to fraction form
    13,322.08/18,384.78 = 7,353.64/x
  3. Step 3: Cross multiply
    13,322.08x = 18,384.78 × 7,353.64
  4. Step 4: Simplify right side
    13,322.08x = 135,195,053.60
  5. Step 5: Solve for x
    x = 135,195,053.60/13,322.08
  6. Step 6: Final answer
    x = 10,148.19

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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.