Home / 12,148.88-18,225.23-4,253.60

Finding the Fourth Proportional to 12,148.88, 18,225.23 and 4,253.60

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Solution

The fourth proportional to 12,148.88, 18,225.23 and 4,253.60 is: 6,381.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.88 : 18,225.23 = 4,253.60 : x
  2. Step 2: Convert to fraction form
    12,148.88/18,225.23 = 4,253.60/x
  3. Step 3: Cross multiply
    12,148.88x = 18,225.23 × 4,253.60
  4. Step 4: Simplify right side
    12,148.88x = 77,522,725.93
  5. Step 5: Solve for x
    x = 77,522,725.93/12,148.88
  6. Step 6: Final answer
    x = 6,381.06

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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.