Home / 12,664.65-17,478.26-7,000.50

Finding the Fourth Proportional to 12,664.65, 17,478.26 and 7,000.50

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Solution

The fourth proportional to 12,664.65, 17,478.26 and 7,000.50 is: 9,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.65 : 17,478.26 = 7,000.50 : x
  2. Step 2: Convert to fraction form
    12,664.65/17,478.26 = 7,000.50/x
  3. Step 3: Cross multiply
    12,664.65x = 17,478.26 × 7,000.50
  4. Step 4: Simplify right side
    12,664.65x = 122,356,559.13
  5. Step 5: Solve for x
    x = 122,356,559.13/12,664.65
  6. Step 6: Final answer
    x = 9,661.27

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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.