Home / 9,451.40-13,052.36-7,789.28

Finding the Fourth Proportional to 9,451.40, 13,052.36 and 7,789.28

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Solution

The fourth proportional to 9,451.40, 13,052.36 and 7,789.28 is: 10,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,451.40 : 13,052.36 = 7,789.28 : x
  2. Step 2: Convert to fraction form
    9,451.40/13,052.36 = 7,789.28/x
  3. Step 3: Cross multiply
    9,451.40x = 13,052.36 × 7,789.28
  4. Step 4: Simplify right side
    9,451.40x = 101,668,486.70
  5. Step 5: Solve for x
    x = 101,668,486.70/9,451.40
  6. Step 6: Final answer
    x = 10,756.98

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Double scale
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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.