Home / 10,719.01-16,085.13-5,172.90

Finding the Fourth Proportional to 10,719.01, 16,085.13 and 5,172.90

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Solution

The fourth proportional to 10,719.01, 16,085.13 and 5,172.90 is: 7,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,719.01 : 16,085.13 = 5,172.90 : x
  2. Step 2: Convert to fraction form
    10,719.01/16,085.13 = 5,172.90/x
  3. Step 3: Cross multiply
    10,719.01x = 16,085.13 × 5,172.90
  4. Step 4: Simplify right side
    10,719.01x = 83,206,768.98
  5. Step 5: Solve for x
    x = 83,206,768.98/10,719.01
  6. Step 6: Final answer
    x = 7,762.54

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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.