Home / 13,431.42-18,535.20-7,462.86

Finding the Fourth Proportional to 13,431.42, 18,535.20 and 7,462.86

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Solution

The fourth proportional to 13,431.42, 18,535.20 and 7,462.86 is: 10,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.42 : 18,535.20 = 7,462.86 : x
  2. Step 2: Convert to fraction form
    13,431.42/18,535.20 = 7,462.86/x
  3. Step 3: Cross multiply
    13,431.42x = 18,535.20 × 7,462.86
  4. Step 4: Simplify right side
    13,431.42x = 138,325,602.67
  5. Step 5: Solve for x
    x = 138,325,602.67/13,431.42
  6. Step 6: Final answer
    x = 10,298.66

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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.