Home / 11,151.25-15,389.21-6,674.14

Finding the Fourth Proportional to 11,151.25, 15,389.21 and 6,674.14

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Solution

The fourth proportional to 11,151.25, 15,389.21 and 6,674.14 is: 9,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.25 : 15,389.21 = 6,674.14 : x
  2. Step 2: Convert to fraction form
    11,151.25/15,389.21 = 6,674.14/x
  3. Step 3: Cross multiply
    11,151.25x = 15,389.21 × 6,674.14
  4. Step 4: Simplify right side
    11,151.25x = 102,709,742.03
  5. Step 5: Solve for x
    x = 102,709,742.03/11,151.25
  6. Step 6: Final answer
    x = 9,210.60

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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.