Home / 13,410.48-20,118.42-4,645.20

Finding the Fourth Proportional to 13,410.48, 20,118.42 and 4,645.20

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Solution

The fourth proportional to 13,410.48, 20,118.42 and 4,645.20 is: 6,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.48 : 20,118.42 = 4,645.20 : x
  2. Step 2: Convert to fraction form
    13,410.48/20,118.42 = 4,645.20/x
  3. Step 3: Cross multiply
    13,410.48x = 20,118.42 × 4,645.20
  4. Step 4: Simplify right side
    13,410.48x = 93,454,084.58
  5. Step 5: Solve for x
    x = 93,454,084.58/13,410.48
  6. Step 6: Final answer
    x = 6,968.74

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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.