Home / 13,778.04-18,993.02-10,788.69

Finding the Fourth Proportional to 13,778.04, 18,993.02 and 10,788.69

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Solution

The fourth proportional to 13,778.04, 18,993.02 and 10,788.69 is: 14,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.04 : 18,993.02 = 10,788.69 : x
  2. Step 2: Convert to fraction form
    13,778.04/18,993.02 = 10,788.69/x
  3. Step 3: Cross multiply
    13,778.04x = 18,993.02 × 10,788.69
  4. Step 4: Simplify right side
    13,778.04x = 204,909,751.00
  5. Step 5: Solve for x
    x = 204,909,751.00/13,778.04
  6. Step 6: Final answer
    x = 14,872.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.