Home / 12,148.90-18,225.82-4,651.93

Finding the Fourth Proportional to 12,148.90, 18,225.82 and 4,651.93

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Solution

The fourth proportional to 12,148.90, 18,225.82 and 4,651.93 is: 6,978.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.90 : 18,225.82 = 4,651.93 : x
  2. Step 2: Convert to fraction form
    12,148.90/18,225.82 = 4,651.93/x
  3. Step 3: Cross multiply
    12,148.90x = 18,225.82 × 4,651.93
  4. Step 4: Simplify right side
    12,148.90x = 84,785,147.70
  5. Step 5: Solve for x
    x = 84,785,147.70/12,148.90
  6. Step 6: Final answer
    x = 6,978.84

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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.