Home / 14,087.85-19,442.13-7,800.21

Finding the Fourth Proportional to 14,087.85, 19,442.13 and 7,800.21

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Solution

The fourth proportional to 14,087.85, 19,442.13 and 7,800.21 is: 10,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.85 : 19,442.13 = 7,800.21 : x
  2. Step 2: Convert to fraction form
    14,087.85/19,442.13 = 7,800.21/x
  3. Step 3: Cross multiply
    14,087.85x = 19,442.13 × 7,800.21
  4. Step 4: Simplify right side
    14,087.85x = 151,652,696.85
  5. Step 5: Solve for x
    x = 151,652,696.85/14,087.85
  6. Step 6: Final answer
    x = 10,764.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.