Home / 9,143.21-12,617.52-5,365.70

Finding the Fourth Proportional to 9,143.21, 12,617.52 and 5,365.70

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Solution

The fourth proportional to 9,143.21, 12,617.52 and 5,365.70 is: 7,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,143.21 : 12,617.52 = 5,365.70 : x
  2. Step 2: Convert to fraction form
    9,143.21/12,617.52 = 5,365.70/x
  3. Step 3: Cross multiply
    9,143.21x = 12,617.52 × 5,365.70
  4. Step 4: Simplify right side
    9,143.21x = 67,701,763.98
  5. Step 5: Solve for x
    x = 67,701,763.98/9,143.21
  6. Step 6: Final answer
    x = 7,404.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.