Home / 10,355.85-14,301.77-7,974.45

Finding the Fourth Proportional to 10,355.85, 14,301.77 and 7,974.45

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Solution

The fourth proportional to 10,355.85, 14,301.77 and 7,974.45 is: 11,012.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.85 : 14,301.77 = 7,974.45 : x
  2. Step 2: Convert to fraction form
    10,355.85/14,301.77 = 7,974.45/x
  3. Step 3: Cross multiply
    10,355.85x = 14,301.77 × 7,974.45
  4. Step 4: Simplify right side
    10,355.85x = 114,048,709.90
  5. Step 5: Solve for x
    x = 114,048,709.90/10,355.85
  6. Step 6: Final answer
    x = 11,012.97

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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.