Home / 11,390.14-15,718.01-6,674.32

Finding the Fourth Proportional to 11,390.14, 15,718.01 and 6,674.32

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Solution

The fourth proportional to 11,390.14, 15,718.01 and 6,674.32 is: 9,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.14 : 15,718.01 = 6,674.32 : x
  2. Step 2: Convert to fraction form
    11,390.14/15,718.01 = 6,674.32/x
  3. Step 3: Cross multiply
    11,390.14x = 15,718.01 × 6,674.32
  4. Step 4: Simplify right side
    11,390.14x = 104,907,028.50
  5. Step 5: Solve for x
    x = 104,907,028.50/11,390.14
  6. Step 6: Final answer
    x = 9,210.34

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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.