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Finding the Fourth Proportional to 12,792.65, 19,153.53 and 6,539.19

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Solution

The fourth proportional to 12,792.65, 19,153.53 and 6,539.19 is: 9,790.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.65 : 19,153.53 = 6,539.19 : x
  2. Step 2: Convert to fraction form
    12,792.65/19,153.53 = 6,539.19/x
  3. Step 3: Cross multiply
    12,792.65x = 19,153.53 × 6,539.19
  4. Step 4: Simplify right side
    12,792.65x = 125,248,571.84
  5. Step 5: Solve for x
    x = 125,248,571.84/12,792.65
  6. Step 6: Final answer
    x = 9,790.67

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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.