Home / 13,202.40-19,790.19-4,430.10

Finding the Fourth Proportional to 13,202.40, 19,790.19 and 4,430.10

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Solution

The fourth proportional to 13,202.40, 19,790.19 and 4,430.10 is: 6,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.40 : 19,790.19 = 4,430.10 : x
  2. Step 2: Convert to fraction form
    13,202.40/19,790.19 = 4,430.10/x
  3. Step 3: Cross multiply
    13,202.40x = 19,790.19 × 4,430.10
  4. Step 4: Simplify right side
    13,202.40x = 87,672,520.72
  5. Step 5: Solve for x
    x = 87,672,520.72/13,202.40
  6. Step 6: Final answer
    x = 6,640.65

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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.