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Finding the Fourth Proportional to 12,341.88, 17,031.36 and 7,038.39

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Solution

The fourth proportional to 12,341.88, 17,031.36 and 7,038.39 is: 9,712.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,341.88 : 17,031.36 = 7,038.39 : x
  2. Step 2: Convert to fraction form
    12,341.88/17,031.36 = 7,038.39/x
  3. Step 3: Cross multiply
    12,341.88x = 17,031.36 × 7,038.39
  4. Step 4: Simplify right side
    12,341.88x = 119,873,353.91
  5. Step 5: Solve for x
    x = 119,873,353.91/12,341.88
  6. Step 6: Final answer
    x = 9,712.73

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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.