Home / 9,171.68-12,656.21-5,394.99

Finding the Fourth Proportional to 9,171.68, 12,656.21 and 5,394.99

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Solution

The fourth proportional to 9,171.68, 12,656.21 and 5,394.99 is: 7,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.68 : 12,656.21 = 5,394.99 : x
  2. Step 2: Convert to fraction form
    9,171.68/12,656.21 = 5,394.99/x
  3. Step 3: Cross multiply
    9,171.68x = 12,656.21 × 5,394.99
  4. Step 4: Simplify right side
    9,171.68x = 68,280,099.41
  5. Step 5: Solve for x
    x = 68,280,099.41/9,171.68
  6. Step 6: Final answer
    x = 7,444.66

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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.