Home / 9,335.21-12,882.86-5,357.03

Finding the Fourth Proportional to 9,335.21, 12,882.86 and 5,357.03

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Solution

The fourth proportional to 9,335.21, 12,882.86 and 5,357.03 is: 7,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,335.21 : 12,882.86 = 5,357.03 : x
  2. Step 2: Convert to fraction form
    9,335.21/12,882.86 = 5,357.03/x
  3. Step 3: Cross multiply
    9,335.21x = 12,882.86 × 5,357.03
  4. Step 4: Simplify right side
    9,335.21x = 69,013,867.51
  5. Step 5: Solve for x
    x = 69,013,867.51/9,335.21
  6. Step 6: Final answer
    x = 7,392.86

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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.