Home / 12,468.54-18,700.89-4,148.70

Finding the Fourth Proportional to 12,468.54, 18,700.89 and 4,148.70

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Solution

The fourth proportional to 12,468.54, 18,700.89 and 4,148.70 is: 6,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.54 : 18,700.89 = 4,148.70 : x
  2. Step 2: Convert to fraction form
    12,468.54/18,700.89 = 4,148.70/x
  3. Step 3: Cross multiply
    12,468.54x = 18,700.89 × 4,148.70
  4. Step 4: Simplify right side
    12,468.54x = 77,584,382.34
  5. Step 5: Solve for x
    x = 77,584,382.34/12,468.54
  6. Step 6: Final answer
    x = 6,222.41

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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.