Home / 14,959.36-20,642.80-8,670.56

Finding the Fourth Proportional to 14,959.36, 20,642.80 and 8,670.56

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Solution

The fourth proportional to 14,959.36, 20,642.80 and 8,670.56 is: 11,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.36 : 20,642.80 = 8,670.56 : x
  2. Step 2: Convert to fraction form
    14,959.36/20,642.80 = 8,670.56/x
  3. Step 3: Cross multiply
    14,959.36x = 20,642.80 × 8,670.56
  4. Step 4: Simplify right side
    14,959.36x = 178,984,635.97
  5. Step 5: Solve for x
    x = 178,984,635.97/14,959.36
  6. Step 6: Final answer
    x = 11,964.73

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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.