Home / 11,939.40-16,471.65-6,902.69

Finding the Fourth Proportional to 11,939.40, 16,471.65 and 6,902.69

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Solution

The fourth proportional to 11,939.40, 16,471.65 and 6,902.69 is: 9,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.40 : 16,471.65 = 6,902.69 : x
  2. Step 2: Convert to fraction form
    11,939.40/16,471.65 = 6,902.69/x
  3. Step 3: Cross multiply
    11,939.40x = 16,471.65 × 6,902.69
  4. Step 4: Simplify right side
    11,939.40x = 113,698,693.74
  5. Step 5: Solve for x
    x = 113,698,693.74/11,939.40
  6. Step 6: Final answer
    x = 9,522.98

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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.