Home / 12,368.64-18,555.52-5,442.56

Finding the Fourth Proportional to 12,368.64, 18,555.52 and 5,442.56

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Solution

The fourth proportional to 12,368.64, 18,555.52 and 5,442.56 is: 8,164.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.64 : 18,555.52 = 5,442.56 : x
  2. Step 2: Convert to fraction form
    12,368.64/18,555.52 = 5,442.56/x
  3. Step 3: Cross multiply
    12,368.64x = 18,555.52 × 5,442.56
  4. Step 4: Simplify right side
    12,368.64x = 100,989,530.93
  5. Step 5: Solve for x
    x = 100,989,530.93/12,368.64
  6. Step 6: Final answer
    x = 8,164.97

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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.