Home / 7,969.02-11,962.75-4,278.45

Finding the Fourth Proportional to 7,969.02, 11,962.75 and 4,278.45

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Solution

The fourth proportional to 7,969.02, 11,962.75 and 4,278.45 is: 6,422.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.02 : 11,962.75 = 4,278.45 : x
  2. Step 2: Convert to fraction form
    7,969.02/11,962.75 = 4,278.45/x
  3. Step 3: Cross multiply
    7,969.02x = 11,962.75 × 4,278.45
  4. Step 4: Simplify right side
    7,969.02x = 51,182,027.74
  5. Step 5: Solve for x
    x = 51,182,027.74/7,969.02
  6. Step 6: Final answer
    x = 6,422.63

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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.