Home / 9,336.28-12,881.50-5,357.20

Finding the Fourth Proportional to 9,336.28, 12,881.50 and 5,357.20

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Solution

The fourth proportional to 9,336.28, 12,881.50 and 5,357.20 is: 7,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,336.28 : 12,881.50 = 5,357.20 : x
  2. Step 2: Convert to fraction form
    9,336.28/12,881.50 = 5,357.20/x
  3. Step 3: Cross multiply
    9,336.28x = 12,881.50 × 5,357.20
  4. Step 4: Simplify right side
    9,336.28x = 69,008,771.80
  5. Step 5: Solve for x
    x = 69,008,771.80/9,336.28
  6. Step 6: Final answer
    x = 7,391.46

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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.