Home / 19,739.78-27,241.26-10,787.66

Finding the Fourth Proportional to 19,739.78, 27,241.26 and 10,787.66

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Solution

The fourth proportional to 19,739.78, 27,241.26 and 10,787.66 is: 14,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.78 : 27,241.26 = 10,787.66 : x
  2. Step 2: Convert to fraction form
    19,739.78/27,241.26 = 10,787.66/x
  3. Step 3: Cross multiply
    19,739.78x = 27,241.26 × 10,787.66
  4. Step 4: Simplify right side
    19,739.78x = 293,869,478.50
  5. Step 5: Solve for x
    x = 293,869,478.50/19,739.78
  6. Step 6: Final answer
    x = 14,887.17

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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.