Home / 14,145.03-21,217.01-4,785.75

Finding the Fourth Proportional to 14,145.03, 21,217.01 and 4,785.75

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Solution

The fourth proportional to 14,145.03, 21,217.01 and 4,785.75 is: 7,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.03 : 21,217.01 = 4,785.75 : x
  2. Step 2: Convert to fraction form
    14,145.03/21,217.01 = 4,785.75/x
  3. Step 3: Cross multiply
    14,145.03x = 21,217.01 × 4,785.75
  4. Step 4: Simplify right side
    14,145.03x = 101,539,281.68
  5. Step 5: Solve for x
    x = 101,539,281.68/14,145.03
  6. Step 6: Final answer
    x = 7,178.44

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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.