Home / 18,790.72-25,931.22-10,407.28

Finding the Fourth Proportional to 18,790.72, 25,931.22 and 10,407.28

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Solution

The fourth proportional to 18,790.72, 25,931.22 and 10,407.28 is: 14,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.72 : 25,931.22 = 10,407.28 : x
  2. Step 2: Convert to fraction form
    18,790.72/25,931.22 = 10,407.28/x
  3. Step 3: Cross multiply
    18,790.72x = 25,931.22 × 10,407.28
  4. Step 4: Simplify right side
    18,790.72x = 269,873,467.28
  5. Step 5: Solve for x
    x = 269,873,467.28/18,790.72
  6. Step 6: Final answer
    x = 14,362.06

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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.