Home / 11,913.31-16,440.34-6,535.78

Finding the Fourth Proportional to 11,913.31, 16,440.34 and 6,535.78

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Solution

The fourth proportional to 11,913.31, 16,440.34 and 6,535.78 is: 9,019.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.31 : 16,440.34 = 6,535.78 : x
  2. Step 2: Convert to fraction form
    11,913.31/16,440.34 = 6,535.78/x
  3. Step 3: Cross multiply
    11,913.31x = 16,440.34 × 6,535.78
  4. Step 4: Simplify right side
    11,913.31x = 107,450,445.37
  5. Step 5: Solve for x
    x = 107,450,445.37/11,913.31
  6. Step 6: Final answer
    x = 9,019.36

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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.