Home / 13,188.70-19,790.85-4,874.59

Finding the Fourth Proportional to 13,188.70, 19,790.85 and 4,874.59

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Solution

The fourth proportional to 13,188.70, 19,790.85 and 4,874.59 is: 7,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.70 : 19,790.85 = 4,874.59 : x
  2. Step 2: Convert to fraction form
    13,188.70/19,790.85 = 4,874.59/x
  3. Step 3: Cross multiply
    13,188.70x = 19,790.85 × 4,874.59
  4. Step 4: Simplify right side
    13,188.70x = 96,472,279.50
  5. Step 5: Solve for x
    x = 96,472,279.50/13,188.70
  6. Step 6: Final answer
    x = 7,314.77

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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.