Home / 9,788.07-13,507.44-5,311.80

Finding the Fourth Proportional to 9,788.07, 13,507.44 and 5,311.80

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Solution

The fourth proportional to 9,788.07, 13,507.44 and 5,311.80 is: 7,330.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,788.07 : 13,507.44 = 5,311.80 : x
  2. Step 2: Convert to fraction form
    9,788.07/13,507.44 = 5,311.80/x
  3. Step 3: Cross multiply
    9,788.07x = 13,507.44 × 5,311.80
  4. Step 4: Simplify right side
    9,788.07x = 71,748,819.79
  5. Step 5: Solve for x
    x = 71,748,819.79/9,788.07
  6. Step 6: Final answer
    x = 7,330.23

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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.