Home / 9,788.22-13,507.84-5,312.01

Finding the Fourth Proportional to 9,788.22, 13,507.84 and 5,312.01

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Solution

The fourth proportional to 9,788.22, 13,507.84 and 5,312.01 is: 7,330.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.22 : 13,507.84 = 5,312.01 : x
  2. Step 2: Convert to fraction form
    9,788.22/13,507.84 = 5,312.01/x
  3. Step 3: Cross multiply
    9,788.22x = 13,507.84 × 5,312.01
  4. Step 4: Simplify right side
    9,788.22x = 71,753,717.22
  5. Step 5: Solve for x
    x = 71,753,717.22/9,788.22
  6. Step 6: Final answer
    x = 7,330.62

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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.