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Finding the Fourth Proportional to 8,509.28, 11,743.26 and 4,972.28

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Solution

The fourth proportional to 8,509.28, 11,743.26 and 4,972.28 is: 6,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.28 : 11,743.26 = 4,972.28 : x
  2. Step 2: Convert to fraction form
    8,509.28/11,743.26 = 4,972.28/x
  3. Step 3: Cross multiply
    8,509.28x = 11,743.26 × 4,972.28
  4. Step 4: Simplify right side
    8,509.28x = 58,390,776.83
  5. Step 5: Solve for x
    x = 58,390,776.83/8,509.28
  6. Step 6: Final answer
    x = 6,862.01

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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.