Home / 12,507-18,766.26-4,715.16

Finding the Fourth Proportional to 12,507, 18,766.26 and 4,715.16

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Solution

The fourth proportional to 12,507, 18,766.26 and 4,715.16 is: 7,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507 : 18,766.26 = 4,715.16 : x
  2. Step 2: Convert to fraction form
    12,507/18,766.26 = 4,715.16/x
  3. Step 3: Cross multiply
    12,507x = 18,766.26 × 4,715.16
  4. Step 4: Simplify right side
    12,507x = 88,485,918.50
  5. Step 5: Solve for x
    x = 88,485,918.50/12,507
  6. Step 6: Final answer
    x = 7,074.91

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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.