Home / 12,841.76-19,267.42-7,854.36

Finding the Fourth Proportional to 12,841.76, 19,267.42 and 7,854.36

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Solution

The fourth proportional to 12,841.76, 19,267.42 and 7,854.36 is: 11,784.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.76 : 19,267.42 = 7,854.36 : x
  2. Step 2: Convert to fraction form
    12,841.76/19,267.42 = 7,854.36/x
  3. Step 3: Cross multiply
    12,841.76x = 19,267.42 × 7,854.36
  4. Step 4: Simplify right side
    12,841.76x = 151,333,252.95
  5. Step 5: Solve for x
    x = 151,333,252.95/12,841.76
  6. Step 6: Final answer
    x = 11,784.46

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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.