Home / 11,575.12-15,974.40-6,858.40

Finding the Fourth Proportional to 11,575.12, 15,974.40 and 6,858.40

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Solution

The fourth proportional to 11,575.12, 15,974.40 and 6,858.40 is: 9,465.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,575.12 : 15,974.40 = 6,858.40 : x
  2. Step 2: Convert to fraction form
    11,575.12/15,974.40 = 6,858.40/x
  3. Step 3: Cross multiply
    11,575.12x = 15,974.40 × 6,858.40
  4. Step 4: Simplify right side
    11,575.12x = 109,558,824.96
  5. Step 5: Solve for x
    x = 109,558,824.96/11,575.12
  6. Step 6: Final answer
    x = 9,465.03

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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.