Home / 8,357.18-11,544.12-6,690.51

Finding the Fourth Proportional to 8,357.18, 11,544.12 and 6,690.51

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Solution

The fourth proportional to 8,357.18, 11,544.12 and 6,690.51 is: 9,241.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.18 : 11,544.12 = 6,690.51 : x
  2. Step 2: Convert to fraction form
    8,357.18/11,544.12 = 6,690.51/x
  3. Step 3: Cross multiply
    8,357.18x = 11,544.12 × 6,690.51
  4. Step 4: Simplify right side
    8,357.18x = 77,236,050.30
  5. Step 5: Solve for x
    x = 77,236,050.30/8,357.18
  6. Step 6: Final answer
    x = 9,241.89

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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.