Home / 14,078.55-21,122.52-4,719.50

Finding the Fourth Proportional to 14,078.55, 21,122.52 and 4,719.50

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Solution

The fourth proportional to 14,078.55, 21,122.52 and 4,719.50 is: 7,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.55 : 21,122.52 = 4,719.50 : x
  2. Step 2: Convert to fraction form
    14,078.55/21,122.52 = 4,719.50/x
  3. Step 3: Cross multiply
    14,078.55x = 21,122.52 × 4,719.50
  4. Step 4: Simplify right side
    14,078.55x = 99,687,733.14
  5. Step 5: Solve for x
    x = 99,687,733.14/14,078.55
  6. Step 6: Final answer
    x = 7,080.82

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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.