Home / 9,911.52-13,677.80-5,435.28

Finding the Fourth Proportional to 9,911.52, 13,677.80 and 5,435.28

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Solution

The fourth proportional to 9,911.52, 13,677.80 and 5,435.28 is: 7,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,911.52 : 13,677.80 = 5,435.28 : x
  2. Step 2: Convert to fraction form
    9,911.52/13,677.80 = 5,435.28/x
  3. Step 3: Cross multiply
    9,911.52x = 13,677.80 × 5,435.28
  4. Step 4: Simplify right side
    9,911.52x = 74,342,672.78
  5. Step 5: Solve for x
    x = 74,342,672.78/9,911.52
  6. Step 6: Final answer
    x = 7,500.63

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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.