Home / 18,460.16-27,651.84-12,518.40

Finding the Fourth Proportional to 18,460.16, 27,651.84 and 12,518.40

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Solution

The fourth proportional to 18,460.16, 27,651.84 and 12,518.40 is: 18,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.16 : 27,651.84 = 12,518.40 : x
  2. Step 2: Convert to fraction form
    18,460.16/27,651.84 = 12,518.40/x
  3. Step 3: Cross multiply
    18,460.16x = 27,651.84 × 12,518.40
  4. Step 4: Simplify right side
    18,460.16x = 346,156,793.86
  5. Step 5: Solve for x
    x = 346,156,793.86/18,460.16
  6. Step 6: Final answer
    x = 18,751.56

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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.