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Finding the Fourth Proportional to 8,720.51, 12,034.18 and 4,741.59

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Solution

The fourth proportional to 8,720.51, 12,034.18 and 4,741.59 is: 6,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.51 : 12,034.18 = 4,741.59 : x
  2. Step 2: Convert to fraction form
    8,720.51/12,034.18 = 4,741.59/x
  3. Step 3: Cross multiply
    8,720.51x = 12,034.18 × 4,741.59
  4. Step 4: Simplify right side
    8,720.51x = 57,061,135.69
  5. Step 5: Solve for x
    x = 57,061,135.69/8,720.51
  6. Step 6: Final answer
    x = 6,543.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.