Home / 13,395.16-18,486.24-7,427.08

Finding the Fourth Proportional to 13,395.16, 18,486.24 and 7,427.08

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Solution

The fourth proportional to 13,395.16, 18,486.24 and 7,427.08 is: 10,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.16 : 18,486.24 = 7,427.08 : x
  2. Step 2: Convert to fraction form
    13,395.16/18,486.24 = 7,427.08/x
  3. Step 3: Cross multiply
    13,395.16x = 18,486.24 × 7,427.08
  4. Step 4: Simplify right side
    13,395.16x = 137,298,783.38
  5. Step 5: Solve for x
    x = 137,298,783.38/13,395.16
  6. Step 6: Final answer
    x = 10,249.88

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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.