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Finding the Fourth Proportional to 14,259.73, 19,669.09 and 8,590.65

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Solution

The fourth proportional to 14,259.73, 19,669.09 and 8,590.65 is: 11,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.73 : 19,669.09 = 8,590.65 : x
  2. Step 2: Convert to fraction form
    14,259.73/19,669.09 = 8,590.65/x
  3. Step 3: Cross multiply
    14,259.73x = 19,669.09 × 8,590.65
  4. Step 4: Simplify right side
    14,259.73x = 168,970,268.01
  5. Step 5: Solve for x
    x = 168,970,268.01/14,259.73
  6. Step 6: Final answer
    x = 11,849.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.