Home / 7,613.72-11,423.04-2,419.64

Finding the Fourth Proportional to 7,613.72, 11,423.04 and 2,419.64

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Solution

The fourth proportional to 7,613.72, 11,423.04 and 2,419.64 is: 3,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.72 : 11,423.04 = 2,419.64 : x
  2. Step 2: Convert to fraction form
    7,613.72/11,423.04 = 2,419.64/x
  3. Step 3: Cross multiply
    7,613.72x = 11,423.04 × 2,419.64
  4. Step 4: Simplify right side
    7,613.72x = 27,639,644.51
  5. Step 5: Solve for x
    x = 27,639,644.51/7,613.72
  6. Step 6: Final answer
    x = 3,630.24

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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.