Home / 6,912.55-10,368.81-1,718.42

Finding the Fourth Proportional to 6,912.55, 10,368.81 and 1,718.42

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Solution

The fourth proportional to 6,912.55, 10,368.81 and 1,718.42 is: 2,577.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.55 : 10,368.81 = 1,718.42 : x
  2. Step 2: Convert to fraction form
    6,912.55/10,368.81 = 1,718.42/x
  3. Step 3: Cross multiply
    6,912.55x = 10,368.81 × 1,718.42
  4. Step 4: Simplify right side
    6,912.55x = 17,817,970.48
  5. Step 5: Solve for x
    x = 17,817,970.48/6,912.55
  6. Step 6: Final answer
    x = 2,577.63

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.