Home / 13,417.22-18,513.79-7,448.94

Finding the Fourth Proportional to 13,417.22, 18,513.79 and 7,448.94

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Solution

The fourth proportional to 13,417.22, 18,513.79 and 7,448.94 is: 10,278.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.22 : 18,513.79 = 7,448.94 : x
  2. Step 2: Convert to fraction form
    13,417.22/18,513.79 = 7,448.94/x
  3. Step 3: Cross multiply
    13,417.22x = 18,513.79 × 7,448.94
  4. Step 4: Simplify right side
    13,417.22x = 137,908,092.26
  5. Step 5: Solve for x
    x = 137,908,092.26/13,417.22
  6. Step 6: Final answer
    x = 10,278.44

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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.