Home / 14,942.51-20,621.18-8,228.60

Finding the Fourth Proportional to 14,942.51, 20,621.18 and 8,228.60

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Solution

The fourth proportional to 14,942.51, 20,621.18 and 8,228.60 is: 11,355.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.51 : 20,621.18 = 8,228.60 : x
  2. Step 2: Convert to fraction form
    14,942.51/20,621.18 = 8,228.60/x
  3. Step 3: Cross multiply
    14,942.51x = 20,621.18 × 8,228.60
  4. Step 4: Simplify right side
    14,942.51x = 169,683,400.61
  5. Step 5: Solve for x
    x = 169,683,400.61/14,942.51
  6. Step 6: Final answer
    x = 11,355.75

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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.