Home / 9,911.19-13,677.86-5,435.11

Finding the Fourth Proportional to 9,911.19, 13,677.86 and 5,435.11

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Solution

The fourth proportional to 9,911.19, 13,677.86 and 5,435.11 is: 7,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.19 : 13,677.86 = 5,435.11 : x
  2. Step 2: Convert to fraction form
    9,911.19/13,677.86 = 5,435.11/x
  3. Step 3: Cross multiply
    9,911.19x = 13,677.86 × 5,435.11
  4. Step 4: Simplify right side
    9,911.19x = 74,340,646.49
  5. Step 5: Solve for x
    x = 74,340,646.49/9,911.19
  6. Step 6: Final answer
    x = 7,500.68

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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.