Home / 13,646.42-20,513.45-12,671.39

Finding the Fourth Proportional to 13,646.42, 20,513.45 and 12,671.39

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Solution

The fourth proportional to 13,646.42, 20,513.45 and 12,671.39 is: 19,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.42 : 20,513.45 = 12,671.39 : x
  2. Step 2: Convert to fraction form
    13,646.42/20,513.45 = 12,671.39/x
  3. Step 3: Cross multiply
    13,646.42x = 20,513.45 × 12,671.39
  4. Step 4: Simplify right side
    13,646.42x = 259,933,892.77
  5. Step 5: Solve for x
    x = 259,933,892.77/13,646.42
  6. Step 6: Final answer
    x = 19,047.77

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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.