Home / 10,715.54-16,083.70-5,172.77

Finding the Fourth Proportional to 10,715.54, 16,083.70 and 5,172.77

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Solution

The fourth proportional to 10,715.54, 16,083.70 and 5,172.77 is: 7,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.54 : 16,083.70 = 5,172.77 : x
  2. Step 2: Convert to fraction form
    10,715.54/16,083.70 = 5,172.77/x
  3. Step 3: Cross multiply
    10,715.54x = 16,083.70 × 5,172.77
  4. Step 4: Simplify right side
    10,715.54x = 83,197,308.13
  5. Step 5: Solve for x
    x = 83,197,308.13/10,715.54
  6. Step 6: Final answer
    x = 7,764.18

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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.