Home / 10,161.45-14,029.34-6,389.82

Finding the Fourth Proportional to 10,161.45, 14,029.34 and 6,389.82

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Solution

The fourth proportional to 10,161.45, 14,029.34 and 6,389.82 is: 8,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.45 : 14,029.34 = 6,389.82 : x
  2. Step 2: Convert to fraction form
    10,161.45/14,029.34 = 6,389.82/x
  3. Step 3: Cross multiply
    10,161.45x = 14,029.34 × 6,389.82
  4. Step 4: Simplify right side
    10,161.45x = 89,644,925.37
  5. Step 5: Solve for x
    x = 89,644,925.37/10,161.45
  6. Step 6: Final answer
    x = 8,822.06

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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.