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Finding the Fourth Proportional to 12,670.52, 19,008.87 and 8,929.59

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Solution

The fourth proportional to 12,670.52, 19,008.87 and 8,929.59 is: 13,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.52 : 19,008.87 = 8,929.59 : x
  2. Step 2: Convert to fraction form
    12,670.52/19,008.87 = 8,929.59/x
  3. Step 3: Cross multiply
    12,670.52x = 19,008.87 × 8,929.59
  4. Step 4: Simplify right side
    12,670.52x = 169,741,415.46
  5. Step 5: Solve for x
    x = 169,741,415.46/12,670.52
  6. Step 6: Final answer
    x = 13,396.57

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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.