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Finding the Fourth Proportional to 14,574.87, 20,114.87 and 8,912.93

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Solution

The fourth proportional to 14,574.87, 20,114.87 and 8,912.93 is: 12,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.87 : 20,114.87 = 8,912.93 : x
  2. Step 2: Convert to fraction form
    14,574.87/20,114.87 = 8,912.93/x
  3. Step 3: Cross multiply
    14,574.87x = 20,114.87 × 8,912.93
  4. Step 4: Simplify right side
    14,574.87x = 179,282,428.27
  5. Step 5: Solve for x
    x = 179,282,428.27/14,574.87
  6. Step 6: Final answer
    x = 12,300.79

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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.