Home / 13,845.12-19,106.56-7,557.44

Finding the Fourth Proportional to 13,845.12, 19,106.56 and 7,557.44

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Solution

The fourth proportional to 13,845.12, 19,106.56 and 7,557.44 is: 10,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.12 : 19,106.56 = 7,557.44 : x
  2. Step 2: Convert to fraction form
    13,845.12/19,106.56 = 7,557.44/x
  3. Step 3: Cross multiply
    13,845.12x = 19,106.56 × 7,557.44
  4. Step 4: Simplify right side
    13,845.12x = 144,396,680.81
  5. Step 5: Solve for x
    x = 144,396,680.81/13,845.12
  6. Step 6: Final answer
    x = 10,429.43

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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.