Home / 13,368.58-18,448.46-7,400.23

Finding the Fourth Proportional to 13,368.58, 18,448.46 and 7,400.23

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Solution

The fourth proportional to 13,368.58, 18,448.46 and 7,400.23 is: 10,212.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.58 : 18,448.46 = 7,400.23 : x
  2. Step 2: Convert to fraction form
    13,368.58/18,448.46 = 7,400.23/x
  3. Step 3: Cross multiply
    13,368.58x = 18,448.46 × 7,400.23
  4. Step 4: Simplify right side
    13,368.58x = 136,522,791.77
  5. Step 5: Solve for x
    x = 136,522,791.77/13,368.58
  6. Step 6: Final answer
    x = 10,212.22

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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.