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Finding the Fourth Proportional to 10,477.22, 15,715.83 and 7,371.12

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Solution

The fourth proportional to 10,477.22, 15,715.83 and 7,371.12 is: 11,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.22 : 15,715.83 = 7,371.12 : x
  2. Step 2: Convert to fraction form
    10,477.22/15,715.83 = 7,371.12/x
  3. Step 3: Cross multiply
    10,477.22x = 15,715.83 × 7,371.12
  4. Step 4: Simplify right side
    10,477.22x = 115,843,268.83
  5. Step 5: Solve for x
    x = 115,843,268.83/10,477.22
  6. Step 6: Final answer
    x = 11,056.68

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.