Home / 13,918.04-19,208.51-7,950.57

Finding the Fourth Proportional to 13,918.04, 19,208.51 and 7,950.57

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Solution

The fourth proportional to 13,918.04, 19,208.51 and 7,950.57 is: 10,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.04 : 19,208.51 = 7,950.57 : x
  2. Step 2: Convert to fraction form
    13,918.04/19,208.51 = 7,950.57/x
  3. Step 3: Cross multiply
    13,918.04x = 19,208.51 × 7,950.57
  4. Step 4: Simplify right side
    13,918.04x = 152,718,563.60
  5. Step 5: Solve for x
    x = 152,718,563.60/13,918.04
  6. Step 6: Final answer
    x = 10,972.71

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1.5x scale

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.