Home / 11,355.85-17,036.21-4,785.13

Finding the Fourth Proportional to 11,355.85, 17,036.21 and 4,785.13

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Solution

The fourth proportional to 11,355.85, 17,036.21 and 4,785.13 is: 7,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.85 : 17,036.21 = 4,785.13 : x
  2. Step 2: Convert to fraction form
    11,355.85/17,036.21 = 4,785.13/x
  3. Step 3: Cross multiply
    11,355.85x = 17,036.21 × 4,785.13
  4. Step 4: Simplify right side
    11,355.85x = 81,520,479.56
  5. Step 5: Solve for x
    x = 81,520,479.56/11,355.85
  6. Step 6: Final answer
    x = 7,178.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.