Home / 12,551.40-18,830.30-8,860.82

Finding the Fourth Proportional to 12,551.40, 18,830.30 and 8,860.82

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Solution

The fourth proportional to 12,551.40, 18,830.30 and 8,860.82 is: 13,293.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.40 : 18,830.30 = 8,860.82 : x
  2. Step 2: Convert to fraction form
    12,551.40/18,830.30 = 8,860.82/x
  3. Step 3: Cross multiply
    12,551.40x = 18,830.30 × 8,860.82
  4. Step 4: Simplify right side
    12,551.40x = 166,851,898.85
  5. Step 5: Solve for x
    x = 166,851,898.85/12,551.40
  6. Step 6: Final answer
    x = 13,293.49

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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.