Home / 18,330.82-25,300.14-10,779.64

Finding the Fourth Proportional to 18,330.82, 25,300.14 and 10,779.64

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Solution

The fourth proportional to 18,330.82, 25,300.14 and 10,779.64 is: 14,878.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.82 : 25,300.14 = 10,779.64 : x
  2. Step 2: Convert to fraction form
    18,330.82/25,300.14 = 10,779.64/x
  3. Step 3: Cross multiply
    18,330.82x = 25,300.14 × 10,779.64
  4. Step 4: Simplify right side
    18,330.82x = 272,726,401.15
  5. Step 5: Solve for x
    x = 272,726,401.15/18,330.82
  6. Step 6: Final answer
    x = 14,878.03

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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.