Home / 12,513.96-18,756.36-4,715.28

Finding the Fourth Proportional to 12,513.96, 18,756.36 and 4,715.28

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Solution

The fourth proportional to 12,513.96, 18,756.36 and 4,715.28 is: 7,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.96 : 18,756.36 = 4,715.28 : x
  2. Step 2: Convert to fraction form
    12,513.96/18,756.36 = 4,715.28/x
  3. Step 3: Cross multiply
    12,513.96x = 18,756.36 × 4,715.28
  4. Step 4: Simplify right side
    12,513.96x = 88,441,489.18
  5. Step 5: Solve for x
    x = 88,441,489.18/12,513.96
  6. Step 6: Final answer
    x = 7,067.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.