Home / 13,298.57-19,950.77-3,939.32

Finding the Fourth Proportional to 13,298.57, 19,950.77 and 3,939.32

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Solution

The fourth proportional to 13,298.57, 19,950.77 and 3,939.32 is: 5,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.57 : 19,950.77 = 3,939.32 : x
  2. Step 2: Convert to fraction form
    13,298.57/19,950.77 = 3,939.32/x
  3. Step 3: Cross multiply
    13,298.57x = 19,950.77 × 3,939.32
  4. Step 4: Simplify right side
    13,298.57x = 78,592,498.95
  5. Step 5: Solve for x
    x = 78,592,498.95/13,298.57
  6. Step 6: Final answer
    x = 5,909.85

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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.