Home / 10,491.05-15,728.87-4,941.27

Finding the Fourth Proportional to 10,491.05, 15,728.87 and 4,941.27

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Solution

The fourth proportional to 10,491.05, 15,728.87 and 4,941.27 is: 7,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,491.05 : 15,728.87 = 4,941.27 : x
  2. Step 2: Convert to fraction form
    10,491.05/15,728.87 = 4,941.27/x
  3. Step 3: Cross multiply
    10,491.05x = 15,728.87 × 4,941.27
  4. Step 4: Simplify right side
    10,491.05x = 77,720,605.82
  5. Step 5: Solve for x
    x = 77,720,605.82/10,491.05
  6. Step 6: Final answer
    x = 7,408.28

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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.