Home / 7,818.42-11,739.54-6,830.70

Finding the Fourth Proportional to 7,818.42, 11,739.54 and 6,830.70

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Solution

The fourth proportional to 7,818.42, 11,739.54 and 6,830.70 is: 10,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.42 : 11,739.54 = 6,830.70 : x
  2. Step 2: Convert to fraction form
    7,818.42/11,739.54 = 6,830.70/x
  3. Step 3: Cross multiply
    7,818.42x = 11,739.54 × 6,830.70
  4. Step 4: Simplify right side
    7,818.42x = 80,189,275.88
  5. Step 5: Solve for x
    x = 80,189,275.88/7,818.42
  6. Step 6: Final answer
    x = 10,256.46

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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.