Home / 13,431.10-18,535.26-7,463.32

Finding the Fourth Proportional to 13,431.10, 18,535.26 and 7,463.32

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Solution

The fourth proportional to 13,431.10, 18,535.26 and 7,463.32 is: 10,299.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.10 : 18,535.26 = 7,463.32 : x
  2. Step 2: Convert to fraction form
    13,431.10/18,535.26 = 7,463.32/x
  3. Step 3: Cross multiply
    13,431.10x = 18,535.26 × 7,463.32
  4. Step 4: Simplify right side
    13,431.10x = 138,334,576.66
  5. Step 5: Solve for x
    x = 138,334,576.66/13,431.10
  6. Step 6: Final answer
    x = 10,299.57

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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.