Home / 9,911.46-13,678.21-5,435.37

Finding the Fourth Proportional to 9,911.46, 13,678.21 and 5,435.37

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Solution

The fourth proportional to 9,911.46, 13,678.21 and 5,435.37 is: 7,501.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.46 : 13,678.21 = 5,435.37 : x
  2. Step 2: Convert to fraction form
    9,911.46/13,678.21 = 5,435.37/x
  3. Step 3: Cross multiply
    9,911.46x = 13,678.21 × 5,435.37
  4. Step 4: Simplify right side
    9,911.46x = 74,346,197.17
  5. Step 5: Solve for x
    x = 74,346,197.17/9,911.46
  6. Step 6: Final answer
    x = 7,501.03

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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.