Home / 12,351.42-18,531.18-4,957.74

Finding the Fourth Proportional to 12,351.42, 18,531.18 and 4,957.74

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Solution

The fourth proportional to 12,351.42, 18,531.18 and 4,957.74 is: 7,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.42 : 18,531.18 = 4,957.74 : x
  2. Step 2: Convert to fraction form
    12,351.42/18,531.18 = 4,957.74/x
  3. Step 3: Cross multiply
    12,351.42x = 18,531.18 × 4,957.74
  4. Step 4: Simplify right side
    12,351.42x = 91,872,772.33
  5. Step 5: Solve for x
    x = 91,872,772.33/12,351.42
  6. Step 6: Final answer
    x = 7,438.24

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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.