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Finding the Fourth Proportional to 8,534.63, 11,779.02 and 8,161.04

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Solution

The fourth proportional to 8,534.63, 11,779.02 and 8,161.04 is: 11,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,534.63 : 11,779.02 = 8,161.04 : x
  2. Step 2: Convert to fraction form
    8,534.63/11,779.02 = 8,161.04/x
  3. Step 3: Cross multiply
    8,534.63x = 11,779.02 × 8,161.04
  4. Step 4: Simplify right side
    8,534.63x = 96,128,994.49
  5. Step 5: Solve for x
    x = 96,128,994.49/8,534.63
  6. Step 6: Final answer
    x = 11,263.41

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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.