Home / 16,190.80-22,338.90-12,837.40

Finding the Fourth Proportional to 16,190.80, 22,338.90 and 12,837.40

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Solution

The fourth proportional to 16,190.80, 22,338.90 and 12,837.40 is: 17,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,190.80 : 22,338.90 = 12,837.40 : x
  2. Step 2: Convert to fraction form
    16,190.80/22,338.90 = 12,837.40/x
  3. Step 3: Cross multiply
    16,190.80x = 22,338.90 × 12,837.40
  4. Step 4: Simplify right side
    16,190.80x = 286,773,394.86
  5. Step 5: Solve for x
    x = 286,773,394.86/16,190.80
  6. Step 6: Final answer
    x = 17,712.12

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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.