Home / 19,683.90-27,163.10-10,731.26

Finding the Fourth Proportional to 19,683.90, 27,163.10 and 10,731.26

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Solution

The fourth proportional to 19,683.90, 27,163.10 and 10,731.26 is: 14,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.90 : 27,163.10 = 10,731.26 : x
  2. Step 2: Convert to fraction form
    19,683.90/27,163.10 = 10,731.26/x
  3. Step 3: Cross multiply
    19,683.90x = 27,163.10 × 10,731.26
  4. Step 4: Simplify right side
    19,683.90x = 291,494,288.51
  5. Step 5: Solve for x
    x = 291,494,288.51/19,683.90
  6. Step 6: Final answer
    x = 14,808.77

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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.