Home / 7,142.48-10,686.84-4,955.44

Finding the Fourth Proportional to 7,142.48, 10,686.84 and 4,955.44

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Solution

The fourth proportional to 7,142.48, 10,686.84 and 4,955.44 is: 7,414.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.48 : 10,686.84 = 4,955.44 : x
  2. Step 2: Convert to fraction form
    7,142.48/10,686.84 = 4,955.44/x
  3. Step 3: Cross multiply
    7,142.48x = 10,686.84 × 4,955.44
  4. Step 4: Simplify right side
    7,142.48x = 52,957,994.41
  5. Step 5: Solve for x
    x = 52,957,994.41/7,142.48
  6. Step 6: Final answer
    x = 7,414.51

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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.