Home / 9,377.28-12,940.65-5,185.53

Finding the Fourth Proportional to 9,377.28, 12,940.65 and 5,185.53

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Solution

The fourth proportional to 9,377.28, 12,940.65 and 5,185.53 is: 7,156.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,377.28 : 12,940.65 = 5,185.53 : x
  2. Step 2: Convert to fraction form
    9,377.28/12,940.65 = 5,185.53/x
  3. Step 3: Cross multiply
    9,377.28x = 12,940.65 × 5,185.53
  4. Step 4: Simplify right side
    9,377.28x = 67,104,128.79
  5. Step 5: Solve for x
    x = 67,104,128.79/9,377.28
  6. Step 6: Final answer
    x = 7,156.03

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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.