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Finding the Fourth Proportional to 6,718.50, 10,012.66 and 6,368.58

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Solution

The fourth proportional to 6,718.50, 10,012.66 and 6,368.58 is: 9,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.50 : 10,012.66 = 6,368.58 : x
  2. Step 2: Convert to fraction form
    6,718.50/10,012.66 = 6,368.58/x
  3. Step 3: Cross multiply
    6,718.50x = 10,012.66 × 6,368.58
  4. Step 4: Simplify right side
    6,718.50x = 63,766,410.30
  5. Step 5: Solve for x
    x = 63,766,410.30/6,718.50
  6. Step 6: Final answer
    x = 9,491.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.