Home / 9,911.53-13,677.73-5,435.20

Finding the Fourth Proportional to 9,911.53, 13,677.73 and 5,435.20

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Solution

The fourth proportional to 9,911.53, 13,677.73 and 5,435.20 is: 7,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.53 : 13,677.73 = 5,435.20 : x
  2. Step 2: Convert to fraction form
    9,911.53/13,677.73 = 5,435.20/x
  3. Step 3: Cross multiply
    9,911.53x = 13,677.73 × 5,435.20
  4. Step 4: Simplify right side
    9,911.53x = 74,341,198.10
  5. Step 5: Solve for x
    x = 74,341,198.10/9,911.53
  6. Step 6: Final answer
    x = 7,500.48

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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.