Home / 12,621.77-17,418.17-6,956.63

Finding the Fourth Proportional to 12,621.77, 17,418.17 and 6,956.63

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Solution

The fourth proportional to 12,621.77, 17,418.17 and 6,956.63 is: 9,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.77 : 17,418.17 = 6,956.63 : x
  2. Step 2: Convert to fraction form
    12,621.77/17,418.17 = 6,956.63/x
  3. Step 3: Cross multiply
    12,621.77x = 17,418.17 × 6,956.63
  4. Step 4: Simplify right side
    12,621.77x = 121,171,729.18
  5. Step 5: Solve for x
    x = 121,171,729.18/12,621.77
  6. Step 6: Final answer
    x = 9,600.22

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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.