Home / 13,673.41-18,870.64-8,007.80

Finding the Fourth Proportional to 13,673.41, 18,870.64 and 8,007.80

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Solution

The fourth proportional to 13,673.41, 18,870.64 and 8,007.80 is: 11,051.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.41 : 18,870.64 = 8,007.80 : x
  2. Step 2: Convert to fraction form
    13,673.41/18,870.64 = 8,007.80/x
  3. Step 3: Cross multiply
    13,673.41x = 18,870.64 × 8,007.80
  4. Step 4: Simplify right side
    13,673.41x = 151,112,196.62
  5. Step 5: Solve for x
    x = 151,112,196.62/13,673.41
  6. Step 6: Final answer
    x = 11,051.54

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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.