Home / 13,355.46-20,134.61-12,641.04

Finding the Fourth Proportional to 13,355.46, 20,134.61 and 12,641.04

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Solution

The fourth proportional to 13,355.46, 20,134.61 and 12,641.04 is: 19,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.46 : 20,134.61 = 12,641.04 : x
  2. Step 2: Convert to fraction form
    13,355.46/20,134.61 = 12,641.04/x
  3. Step 3: Cross multiply
    13,355.46x = 20,134.61 × 12,641.04
  4. Step 4: Simplify right side
    13,355.46x = 254,522,347.19
  5. Step 5: Solve for x
    x = 254,522,347.19/13,355.46
  6. Step 6: Final answer
    x = 19,057.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.