Home / 8,451.55-12,681.27-3,771.07

Finding the Fourth Proportional to 8,451.55, 12,681.27 and 3,771.07

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Solution

The fourth proportional to 8,451.55, 12,681.27 and 3,771.07 is: 5,658.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.55 : 12,681.27 = 3,771.07 : x
  2. Step 2: Convert to fraction form
    8,451.55/12,681.27 = 3,771.07/x
  3. Step 3: Cross multiply
    8,451.55x = 12,681.27 × 3,771.07
  4. Step 4: Simplify right side
    8,451.55x = 47,821,925.16
  5. Step 5: Solve for x
    x = 47,821,925.16/8,451.55
  6. Step 6: Final answer
    x = 5,658.36

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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.