Home / 5,613.84-8,454.36-5,115.60

Finding the Fourth Proportional to 5,613.84, 8,454.36 and 5,115.60

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Solution

The fourth proportional to 5,613.84, 8,454.36 and 5,115.60 is: 7,704.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.84 : 8,454.36 = 5,115.60 : x
  2. Step 2: Convert to fraction form
    5,613.84/8,454.36 = 5,115.60/x
  3. Step 3: Cross multiply
    5,613.84x = 8,454.36 × 5,115.60
  4. Step 4: Simplify right side
    5,613.84x = 43,249,124.02
  5. Step 5: Solve for x
    x = 43,249,124.02/5,613.84
  6. Step 6: Final answer
    x = 7,704.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.