Home / 13,673.23-18,866.39-8,364.29

Finding the Fourth Proportional to 13,673.23, 18,866.39 and 8,364.29

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Solution

The fourth proportional to 13,673.23, 18,866.39 and 8,364.29 is: 11,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.23 : 18,866.39 = 8,364.29 : x
  2. Step 2: Convert to fraction form
    13,673.23/18,866.39 = 8,364.29/x
  3. Step 3: Cross multiply
    13,673.23x = 18,866.39 × 8,364.29
  4. Step 4: Simplify right side
    13,673.23x = 157,803,821.06
  5. Step 5: Solve for x
    x = 157,803,821.06/13,673.23
  6. Step 6: Final answer
    x = 11,541.08

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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.