Home / 14,655.27-20,205.21-9,340.86

Finding the Fourth Proportional to 14,655.27, 20,205.21 and 9,340.86

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Solution

The fourth proportional to 14,655.27, 20,205.21 and 9,340.86 is: 12,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.27 : 20,205.21 = 9,340.86 : x
  2. Step 2: Convert to fraction form
    14,655.27/20,205.21 = 9,340.86/x
  3. Step 3: Cross multiply
    14,655.27x = 20,205.21 × 9,340.86
  4. Step 4: Simplify right side
    14,655.27x = 188,734,037.88
  5. Step 5: Solve for x
    x = 188,734,037.88/14,655.27
  6. Step 6: Final answer
    x = 12,878.24

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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.