Home / 13,512.61-18,646.64-7,544.66

Finding the Fourth Proportional to 13,512.61, 18,646.64 and 7,544.66

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Solution

The fourth proportional to 13,512.61, 18,646.64 and 7,544.66 is: 10,411.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.61 : 18,646.64 = 7,544.66 : x
  2. Step 2: Convert to fraction form
    13,512.61/18,646.64 = 7,544.66/x
  3. Step 3: Cross multiply
    13,512.61x = 18,646.64 × 7,544.66
  4. Step 4: Simplify right side
    13,512.61x = 140,682,558.94
  5. Step 5: Solve for x
    x = 140,682,558.94/13,512.61
  6. Step 6: Final answer
    x = 10,411.21

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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.