Home / 12,093.40-18,135.30-4,298.20

Finding the Fourth Proportional to 12,093.40, 18,135.30 and 4,298.20

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Solution

The fourth proportional to 12,093.40, 18,135.30 and 4,298.20 is: 6,445.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.40 : 18,135.30 = 4,298.20 : x
  2. Step 2: Convert to fraction form
    12,093.40/18,135.30 = 4,298.20/x
  3. Step 3: Cross multiply
    12,093.40x = 18,135.30 × 4,298.20
  4. Step 4: Simplify right side
    12,093.40x = 77,949,146.46
  5. Step 5: Solve for x
    x = 77,949,146.46/12,093.40
  6. Step 6: Final answer
    x = 6,445.59

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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.