Home / 11,419.16-15,758.81-6,314.75

Finding the Fourth Proportional to 11,419.16, 15,758.81 and 6,314.75

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Solution

The fourth proportional to 11,419.16, 15,758.81 and 6,314.75 is: 8,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.16 : 15,758.81 = 6,314.75 : x
  2. Step 2: Convert to fraction form
    11,419.16/15,758.81 = 6,314.75/x
  3. Step 3: Cross multiply
    11,419.16x = 15,758.81 × 6,314.75
  4. Step 4: Simplify right side
    11,419.16x = 99,512,835.08
  5. Step 5: Solve for x
    x = 99,512,835.08/11,419.16
  6. Step 6: Final answer
    x = 8,714.55

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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.