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Finding the Fourth Proportional to 12,260.66, 16,919.88 and 6,955.47

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Solution

The fourth proportional to 12,260.66, 16,919.88 and 6,955.47 is: 9,598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.66 : 16,919.88 = 6,955.47 : x
  2. Step 2: Convert to fraction form
    12,260.66/16,919.88 = 6,955.47/x
  3. Step 3: Cross multiply
    12,260.66x = 16,919.88 × 6,955.47
  4. Step 4: Simplify right side
    12,260.66x = 117,685,717.74
  5. Step 5: Solve for x
    x = 117,685,717.74/12,260.66
  6. Step 6: Final answer
    x = 9,598.65

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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.