Home / 18,817.45-25,970.12-12,011.66

Finding the Fourth Proportional to 18,817.45, 25,970.12 and 12,011.66

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Solution

The fourth proportional to 18,817.45, 25,970.12 and 12,011.66 is: 16,577.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.45 : 25,970.12 = 12,011.66 : x
  2. Step 2: Convert to fraction form
    18,817.45/25,970.12 = 12,011.66/x
  3. Step 3: Cross multiply
    18,817.45x = 25,970.12 × 12,011.66
  4. Step 4: Simplify right side
    18,817.45x = 311,944,204.12
  5. Step 5: Solve for x
    x = 311,944,204.12/18,817.45
  6. Step 6: Final answer
    x = 16,577.39

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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.