Home / 13,991.64-19,309.83-10,448.70

Finding the Fourth Proportional to 13,991.64, 19,309.83 and 10,448.70

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Solution

The fourth proportional to 13,991.64, 19,309.83 and 10,448.70 is: 14,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.64 : 19,309.83 = 10,448.70 : x
  2. Step 2: Convert to fraction form
    13,991.64/19,309.83 = 10,448.70/x
  3. Step 3: Cross multiply
    13,991.64x = 19,309.83 × 10,448.70
  4. Step 4: Simplify right side
    13,991.64x = 201,762,730.83
  5. Step 5: Solve for x
    x = 201,762,730.83/13,991.64
  6. Step 6: Final answer
    x = 14,420.23

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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.