Home / 13,417.24-20,158.66-12,671.24

Finding the Fourth Proportional to 13,417.24, 20,158.66 and 12,671.24

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Solution

The fourth proportional to 13,417.24, 20,158.66 and 12,671.24 is: 19,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.24 : 20,158.66 = 12,671.24 : x
  2. Step 2: Convert to fraction form
    13,417.24/20,158.66 = 12,671.24/x
  3. Step 3: Cross multiply
    13,417.24x = 20,158.66 × 12,671.24
  4. Step 4: Simplify right side
    13,417.24x = 255,435,218.94
  5. Step 5: Solve for x
    x = 255,435,218.94/13,417.24
  6. Step 6: Final answer
    x = 19,037.84

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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.