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Finding the Fourth Proportional to 8,685.54, 13,030.74 and 2,762.01

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Solution

The fourth proportional to 8,685.54, 13,030.74 and 2,762.01 is: 4,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.54 : 13,030.74 = 2,762.01 : x
  2. Step 2: Convert to fraction form
    8,685.54/13,030.74 = 2,762.01/x
  3. Step 3: Cross multiply
    8,685.54x = 13,030.74 × 2,762.01
  4. Step 4: Simplify right side
    8,685.54x = 35,991,034.19
  5. Step 5: Solve for x
    x = 35,991,034.19/8,685.54
  6. Step 6: Final answer
    x = 4,143.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.