Home / 11,913.81-16,440.81-6,608.58

Finding the Fourth Proportional to 11,913.81, 16,440.81 and 6,608.58

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Solution

The fourth proportional to 11,913.81, 16,440.81 and 6,608.58 is: 9,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.81 : 16,440.81 = 6,608.58 : x
  2. Step 2: Convert to fraction form
    11,913.81/16,440.81 = 6,608.58/x
  3. Step 3: Cross multiply
    11,913.81x = 16,440.81 × 6,608.58
  4. Step 4: Simplify right side
    11,913.81x = 108,650,482.19
  5. Step 5: Solve for x
    x = 108,650,482.19/11,913.81
  6. Step 6: Final answer
    x = 9,119.71

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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.