Home / 9,291.70-12,816.93-6,148.90

Finding the Fourth Proportional to 9,291.70, 12,816.93 and 6,148.90

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Solution

The fourth proportional to 9,291.70, 12,816.93 and 6,148.90 is: 8,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.70 : 12,816.93 = 6,148.90 : x
  2. Step 2: Convert to fraction form
    9,291.70/12,816.93 = 6,148.90/x
  3. Step 3: Cross multiply
    9,291.70x = 12,816.93 × 6,148.90
  4. Step 4: Simplify right side
    9,291.70x = 78,810,020.88
  5. Step 5: Solve for x
    x = 78,810,020.88/9,291.70
  6. Step 6: Final answer
    x = 8,481.77

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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.