Home / 19,142.82-26,415.09-10,643.58

Finding the Fourth Proportional to 19,142.82, 26,415.09 and 10,643.58

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Solution

The fourth proportional to 19,142.82, 26,415.09 and 10,643.58 is: 14,687.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.82 : 26,415.09 = 10,643.58 : x
  2. Step 2: Convert to fraction form
    19,142.82/26,415.09 = 10,643.58/x
  3. Step 3: Cross multiply
    19,142.82x = 26,415.09 × 10,643.58
  4. Step 4: Simplify right side
    19,142.82x = 281,151,123.62
  5. Step 5: Solve for x
    x = 281,151,123.62/19,142.82
  6. Step 6: Final answer
    x = 14,687.03

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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.