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Finding the Fourth Proportional to 12,313.53, 18,472.12 and 4,521.74

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Solution

The fourth proportional to 12,313.53, 18,472.12 and 4,521.74 is: 6,783.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.53 : 18,472.12 = 4,521.74 : x
  2. Step 2: Convert to fraction form
    12,313.53/18,472.12 = 4,521.74/x
  3. Step 3: Cross multiply
    12,313.53x = 18,472.12 × 4,521.74
  4. Step 4: Simplify right side
    12,313.53x = 83,526,020.22
  5. Step 5: Solve for x
    x = 83,526,020.22/12,313.53
  6. Step 6: Final answer
    x = 6,783.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.