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Finding the Fourth Proportional to 14,477.01, 21,690.71 and 7,907.79

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Solution

The fourth proportional to 14,477.01, 21,690.71 and 7,907.79 is: 11,848.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.01 : 21,690.71 = 7,907.79 : x
  2. Step 2: Convert to fraction form
    14,477.01/21,690.71 = 7,907.79/x
  3. Step 3: Cross multiply
    14,477.01x = 21,690.71 × 7,907.79
  4. Step 4: Simplify right side
    14,477.01x = 171,525,540.09
  5. Step 5: Solve for x
    x = 171,525,540.09/14,477.01
  6. Step 6: Final answer
    x = 11,848.13

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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.