Home / 12,347.21-17,044.62-7,876.82

Finding the Fourth Proportional to 12,347.21, 17,044.62 and 7,876.82

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Solution

The fourth proportional to 12,347.21, 17,044.62 and 7,876.82 is: 10,873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.21 : 17,044.62 = 7,876.82 : x
  2. Step 2: Convert to fraction form
    12,347.21/17,044.62 = 7,876.82/x
  3. Step 3: Cross multiply
    12,347.21x = 17,044.62 × 7,876.82
  4. Step 4: Simplify right side
    12,347.21x = 134,257,403.71
  5. Step 5: Solve for x
    x = 134,257,403.71/12,347.21
  6. Step 6: Final answer
    x = 10,873.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.