Home / 13,407.24-18,501.96-8,101.08

Finding the Fourth Proportional to 13,407.24, 18,501.96 and 8,101.08

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Solution

The fourth proportional to 13,407.24, 18,501.96 and 8,101.08 is: 11,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.24 : 18,501.96 = 8,101.08 : x
  2. Step 2: Convert to fraction form
    13,407.24/18,501.96 = 8,101.08/x
  3. Step 3: Cross multiply
    13,407.24x = 18,501.96 × 8,101.08
  4. Step 4: Simplify right side
    13,407.24x = 149,885,858.12
  5. Step 5: Solve for x
    x = 149,885,858.12/13,407.24
  6. Step 6: Final answer
    x = 11,179.47

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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.