Home / 10,069.40-13,897.50-5,879.72

Finding the Fourth Proportional to 10,069.40, 13,897.50 and 5,879.72

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Solution

The fourth proportional to 10,069.40, 13,897.50 and 5,879.72 is: 8,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069.40 : 13,897.50 = 5,879.72 : x
  2. Step 2: Convert to fraction form
    10,069.40/13,897.50 = 5,879.72/x
  3. Step 3: Cross multiply
    10,069.40x = 13,897.50 × 5,879.72
  4. Step 4: Simplify right side
    10,069.40x = 81,713,408.70
  5. Step 5: Solve for x
    x = 81,713,408.70/10,069.40
  6. Step 6: Final answer
    x = 8,115.02

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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.