Home / 13,783.11-19,020.60-7,495.47

Finding the Fourth Proportional to 13,783.11, 19,020.60 and 7,495.47

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Solution

The fourth proportional to 13,783.11, 19,020.60 and 7,495.47 is: 10,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.11 : 19,020.60 = 7,495.47 : x
  2. Step 2: Convert to fraction form
    13,783.11/19,020.60 = 7,495.47/x
  3. Step 3: Cross multiply
    13,783.11x = 19,020.60 × 7,495.47
  4. Step 4: Simplify right side
    13,783.11x = 142,568,336.68
  5. Step 5: Solve for x
    x = 142,568,336.68/13,783.11
  6. Step 6: Final answer
    x = 10,343.70

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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.