Home / 14,941.28-20,620.16-8,228.16

Finding the Fourth Proportional to 14,941.28, 20,620.16 and 8,228.16

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Solution

The fourth proportional to 14,941.28, 20,620.16 and 8,228.16 is: 11,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,941.28 : 20,620.16 = 8,228.16 : x
  2. Step 2: Convert to fraction form
    14,941.28/20,620.16 = 8,228.16/x
  3. Step 3: Cross multiply
    14,941.28x = 20,620.16 × 8,228.16
  4. Step 4: Simplify right side
    14,941.28x = 169,665,975.71
  5. Step 5: Solve for x
    x = 169,665,975.71/14,941.28
  6. Step 6: Final answer
    x = 11,355.52

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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.