Home / 11,483.88-15,855.60-7,712.76

Finding the Fourth Proportional to 11,483.88, 15,855.60 and 7,712.76

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Solution

The fourth proportional to 11,483.88, 15,855.60 and 7,712.76 is: 10,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,483.88 : 15,855.60 = 7,712.76 : x
  2. Step 2: Convert to fraction form
    11,483.88/15,855.60 = 7,712.76/x
  3. Step 3: Cross multiply
    11,483.88x = 15,855.60 × 7,712.76
  4. Step 4: Simplify right side
    11,483.88x = 122,290,437.46
  5. Step 5: Solve for x
    x = 122,290,437.46/11,483.88
  6. Step 6: Final answer
    x = 10,648.88

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Half scale
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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.