Home / 13,991.22-19,309.25-10,448.28

Finding the Fourth Proportional to 13,991.22, 19,309.25 and 10,448.28

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Solution

The fourth proportional to 13,991.22, 19,309.25 and 10,448.28 is: 14,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.22 : 19,309.25 = 10,448.28 : x
  2. Step 2: Convert to fraction form
    13,991.22/19,309.25 = 10,448.28/x
  3. Step 3: Cross multiply
    13,991.22x = 19,309.25 × 10,448.28
  4. Step 4: Simplify right side
    13,991.22x = 201,748,501.63
  5. Step 5: Solve for x
    x = 201,748,501.63/13,991.22
  6. Step 6: Final answer
    x = 14,419.65

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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.