Home / 12,912.26-19,355.34-8,752.70

Finding the Fourth Proportional to 12,912.26, 19,355.34 and 8,752.70

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Solution

The fourth proportional to 12,912.26, 19,355.34 and 8,752.70 is: 13,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.26 : 19,355.34 = 8,752.70 : x
  2. Step 2: Convert to fraction form
    12,912.26/19,355.34 = 8,752.70/x
  3. Step 3: Cross multiply
    12,912.26x = 19,355.34 × 8,752.70
  4. Step 4: Simplify right side
    12,912.26x = 169,411,484.42
  5. Step 5: Solve for x
    x = 169,411,484.42/12,912.26
  6. Step 6: Final answer
    x = 13,120.20

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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.