Home / 7,918.24-11,875.63-2,653.99

Finding the Fourth Proportional to 7,918.24, 11,875.63 and 2,653.99

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Solution

The fourth proportional to 7,918.24, 11,875.63 and 2,653.99 is: 3,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.24 : 11,875.63 = 2,653.99 : x
  2. Step 2: Convert to fraction form
    7,918.24/11,875.63 = 2,653.99/x
  3. Step 3: Cross multiply
    7,918.24x = 11,875.63 × 2,653.99
  4. Step 4: Simplify right side
    7,918.24x = 31,517,803.26
  5. Step 5: Solve for x
    x = 31,517,803.26/7,918.24
  6. Step 6: Final answer
    x = 3,980.41

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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.