Home / 9,328.87-12,873.70-5,137.12

Finding the Fourth Proportional to 9,328.87, 12,873.70 and 5,137.12

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Solution

The fourth proportional to 9,328.87, 12,873.70 and 5,137.12 is: 7,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.87 : 12,873.70 = 5,137.12 : x
  2. Step 2: Convert to fraction form
    9,328.87/12,873.70 = 5,137.12/x
  3. Step 3: Cross multiply
    9,328.87x = 12,873.70 × 5,137.12
  4. Step 4: Simplify right side
    9,328.87x = 66,133,764.26
  5. Step 5: Solve for x
    x = 66,133,764.26/9,328.87
  6. Step 6: Final answer
    x = 7,089.15

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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.