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Finding the Fourth Proportional to 12,798.52, 19,191.24 and 9,606.78

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Solution

The fourth proportional to 12,798.52, 19,191.24 and 9,606.78 is: 14,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.52 : 19,191.24 = 9,606.78 : x
  2. Step 2: Convert to fraction form
    12,798.52/19,191.24 = 9,606.78/x
  3. Step 3: Cross multiply
    12,798.52x = 19,191.24 × 9,606.78
  4. Step 4: Simplify right side
    12,798.52x = 184,366,020.61
  5. Step 5: Solve for x
    x = 184,366,020.61/12,798.52
  6. Step 6: Final answer
    x = 14,405.26

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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.