Home / 8,664.04-12,988.86-4,969

Finding the Fourth Proportional to 8,664.04, 12,988.86 and 4,969

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Solution

The fourth proportional to 8,664.04, 12,988.86 and 4,969 is: 7,449.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.04 : 12,988.86 = 4,969 : x
  2. Step 2: Convert to fraction form
    8,664.04/12,988.86 = 4,969/x
  3. Step 3: Cross multiply
    8,664.04x = 12,988.86 × 4,969
  4. Step 4: Simplify right side
    8,664.04x = 64,541,645.34
  5. Step 5: Solve for x
    x = 64,541,645.34/8,664.04
  6. Step 6: Final answer
    x = 7,449.37

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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.