Home / 7,924.90-11,899.03-4,421.75

Finding the Fourth Proportional to 7,924.90, 11,899.03 and 4,421.75

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Solution

The fourth proportional to 7,924.90, 11,899.03 and 4,421.75 is: 6,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.90 : 11,899.03 = 4,421.75 : x
  2. Step 2: Convert to fraction form
    7,924.90/11,899.03 = 4,421.75/x
  3. Step 3: Cross multiply
    7,924.90x = 11,899.03 × 4,421.75
  4. Step 4: Simplify right side
    7,924.90x = 52,614,535.90
  5. Step 5: Solve for x
    x = 52,614,535.90/7,924.90
  6. Step 6: Final answer
    x = 6,639.14

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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.