Home / 12,621.84-17,418.90-6,956.58

Finding the Fourth Proportional to 12,621.84, 17,418.90 and 6,956.58

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Solution

The fourth proportional to 12,621.84, 17,418.90 and 6,956.58 is: 9,600.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.84 : 17,418.90 = 6,956.58 : x
  2. Step 2: Convert to fraction form
    12,621.84/17,418.90 = 6,956.58/x
  3. Step 3: Cross multiply
    12,621.84x = 17,418.90 × 6,956.58
  4. Step 4: Simplify right side
    12,621.84x = 121,175,971.36
  5. Step 5: Solve for x
    x = 121,175,971.36/12,621.84
  6. Step 6: Final answer
    x = 9,600.50

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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.