Home / 13,673.24-18,871.08-8,367.20

Finding the Fourth Proportional to 13,673.24, 18,871.08 and 8,367.20

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Solution

The fourth proportional to 13,673.24, 18,871.08 and 8,367.20 is: 11,547.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.24 : 18,871.08 = 8,367.20 : x
  2. Step 2: Convert to fraction form
    13,673.24/18,871.08 = 8,367.20/x
  3. Step 3: Cross multiply
    13,673.24x = 18,871.08 × 8,367.20
  4. Step 4: Simplify right side
    13,673.24x = 157,898,100.58
  5. Step 5: Solve for x
    x = 157,898,100.58/13,673.24
  6. Step 6: Final answer
    x = 11,547.97

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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.