Home / 7,970.63-11,958.38-4,077.77

Finding the Fourth Proportional to 7,970.63, 11,958.38 and 4,077.77

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Solution

The fourth proportional to 7,970.63, 11,958.38 and 4,077.77 is: 6,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.63 : 11,958.38 = 4,077.77 : x
  2. Step 2: Convert to fraction form
    7,970.63/11,958.38 = 4,077.77/x
  3. Step 3: Cross multiply
    7,970.63x = 11,958.38 × 4,077.77
  4. Step 4: Simplify right side
    7,970.63x = 48,763,523.21
  5. Step 5: Solve for x
    x = 48,763,523.21/7,970.63
  6. Step 6: Final answer
    x = 6,117.90

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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.