Home / 13,330.32-19,988.80-4,442.53

Finding the Fourth Proportional to 13,330.32, 19,988.80 and 4,442.53

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Solution

The fourth proportional to 13,330.32, 19,988.80 and 4,442.53 is: 6,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.32 : 19,988.80 = 4,442.53 : x
  2. Step 2: Convert to fraction form
    13,330.32/19,988.80 = 4,442.53/x
  3. Step 3: Cross multiply
    13,330.32x = 19,988.80 × 4,442.53
  4. Step 4: Simplify right side
    13,330.32x = 88,800,843.66
  5. Step 5: Solve for x
    x = 88,800,843.66/13,330.32
  6. Step 6: Final answer
    x = 6,661.57

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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.