Home / 13,582.19-20,370.51-3,720.71

Finding the Fourth Proportional to 13,582.19, 20,370.51 and 3,720.71

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Solution

The fourth proportional to 13,582.19, 20,370.51 and 3,720.71 is: 5,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,582.19 : 20,370.51 = 3,720.71 : x
  2. Step 2: Convert to fraction form
    13,582.19/20,370.51 = 3,720.71/x
  3. Step 3: Cross multiply
    13,582.19x = 20,370.51 × 3,720.71
  4. Step 4: Simplify right side
    13,582.19x = 75,792,760.26
  5. Step 5: Solve for x
    x = 75,792,760.26/13,582.19
  6. Step 6: Final answer
    x = 5,580.30

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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.