Home / 14,288.09-19,718.68-8,240.28

Finding the Fourth Proportional to 14,288.09, 19,718.68 and 8,240.28

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Solution

The fourth proportional to 14,288.09, 19,718.68 and 8,240.28 is: 11,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.09 : 19,718.68 = 8,240.28 : x
  2. Step 2: Convert to fraction form
    14,288.09/19,718.68 = 8,240.28/x
  3. Step 3: Cross multiply
    14,288.09x = 19,718.68 × 8,240.28
  4. Step 4: Simplify right side
    14,288.09x = 162,487,444.43
  5. Step 5: Solve for x
    x = 162,487,444.43/14,288.09
  6. Step 6: Final answer
    x = 11,372.23

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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.