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Finding the Fourth Proportional to 8,038.71, 11,089.72 and 5,207.03

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Solution

The fourth proportional to 8,038.71, 11,089.72 and 5,207.03 is: 7,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,038.71 : 11,089.72 = 5,207.03 : x
  2. Step 2: Convert to fraction form
    8,038.71/11,089.72 = 5,207.03/x
  3. Step 3: Cross multiply
    8,038.71x = 11,089.72 × 5,207.03
  4. Step 4: Simplify right side
    8,038.71x = 57,744,449.28
  5. Step 5: Solve for x
    x = 57,744,449.28/8,038.71
  6. Step 6: Final answer
    x = 7,183.30

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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.