Home / 13,554.06-20,329.86-4,191.60

Finding the Fourth Proportional to 13,554.06, 20,329.86 and 4,191.60

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Solution

The fourth proportional to 13,554.06, 20,329.86 and 4,191.60 is: 6,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.06 : 20,329.86 = 4,191.60 : x
  2. Step 2: Convert to fraction form
    13,554.06/20,329.86 = 4,191.60/x
  3. Step 3: Cross multiply
    13,554.06x = 20,329.86 × 4,191.60
  4. Step 4: Simplify right side
    13,554.06x = 85,214,641.18
  5. Step 5: Solve for x
    x = 85,214,641.18/13,554.06
  6. Step 6: Final answer
    x = 6,287.02

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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.