Home / 6,939.60-10,409.40-4,614.72

Finding the Fourth Proportional to 6,939.60, 10,409.40 and 4,614.72

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Solution

The fourth proportional to 6,939.60, 10,409.40 and 4,614.72 is: 6,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.60 : 10,409.40 = 4,614.72 : x
  2. Step 2: Convert to fraction form
    6,939.60/10,409.40 = 4,614.72/x
  3. Step 3: Cross multiply
    6,939.60x = 10,409.40 × 4,614.72
  4. Step 4: Simplify right side
    6,939.60x = 48,036,466.37
  5. Step 5: Solve for x
    x = 48,036,466.37/6,939.60
  6. Step 6: Final answer
    x = 6,922.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.