Home / 9,388.26-12,955.83-5,139.23

Finding the Fourth Proportional to 9,388.26, 12,955.83 and 5,139.23

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Solution

The fourth proportional to 9,388.26, 12,955.83 and 5,139.23 is: 7,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,388.26 : 12,955.83 = 5,139.23 : x
  2. Step 2: Convert to fraction form
    9,388.26/12,955.83 = 5,139.23/x
  3. Step 3: Cross multiply
    9,388.26x = 12,955.83 × 5,139.23
  4. Step 4: Simplify right side
    9,388.26x = 66,582,925.43
  5. Step 5: Solve for x
    x = 66,582,925.43/9,388.26
  6. Step 6: Final answer
    x = 7,092.15

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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.