Home / 12,170.88-18,248.45-4,776.08

Finding the Fourth Proportional to 12,170.88, 18,248.45 and 4,776.08

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Solution

The fourth proportional to 12,170.88, 18,248.45 and 4,776.08 is: 7,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.88 : 18,248.45 = 4,776.08 : x
  2. Step 2: Convert to fraction form
    12,170.88/18,248.45 = 4,776.08/x
  3. Step 3: Cross multiply
    12,170.88x = 18,248.45 × 4,776.08
  4. Step 4: Simplify right side
    12,170.88x = 87,155,941.95
  5. Step 5: Solve for x
    x = 87,155,941.95/12,170.88
  6. Step 6: Final answer
    x = 7,161.02

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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.