Home / 15,014.28-20,719.70-8,727.88

Finding the Fourth Proportional to 15,014.28, 20,719.70 and 8,727.88

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Solution

The fourth proportional to 15,014.28, 20,719.70 and 8,727.88 is: 12,044.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.28 : 20,719.70 = 8,727.88 : x
  2. Step 2: Convert to fraction form
    15,014.28/20,719.70 = 8,727.88/x
  3. Step 3: Cross multiply
    15,014.28x = 20,719.70 × 8,727.88
  4. Step 4: Simplify right side
    15,014.28x = 180,839,055.24
  5. Step 5: Solve for x
    x = 180,839,055.24/15,014.28
  6. Step 6: Final answer
    x = 12,044.47

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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.