Home / 12,759.86-19,103.84-9,629.91

Finding the Fourth Proportional to 12,759.86, 19,103.84 and 9,629.91

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Solution

The fourth proportional to 12,759.86, 19,103.84 and 9,629.91 is: 14,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.86 : 19,103.84 = 9,629.91 : x
  2. Step 2: Convert to fraction form
    12,759.86/19,103.84 = 9,629.91/x
  3. Step 3: Cross multiply
    12,759.86x = 19,103.84 × 9,629.91
  4. Step 4: Simplify right side
    12,759.86x = 183,968,211.70
  5. Step 5: Solve for x
    x = 183,968,211.70/12,759.86
  6. Step 6: Final answer
    x = 14,417.74

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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.