Home / 7,980.24-11,959.26-4,076.40

Finding the Fourth Proportional to 7,980.24, 11,959.26 and 4,076.40

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Solution

The fourth proportional to 7,980.24, 11,959.26 and 4,076.40 is: 6,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.24 : 11,959.26 = 4,076.40 : x
  2. Step 2: Convert to fraction form
    7,980.24/11,959.26 = 4,076.40/x
  3. Step 3: Cross multiply
    7,980.24x = 11,959.26 × 4,076.40
  4. Step 4: Simplify right side
    7,980.24x = 48,750,727.46
  5. Step 5: Solve for x
    x = 48,750,727.46/7,980.24
  6. Step 6: Final answer
    x = 6,108.93

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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.