Home / 13,715.96-18,927.63-8,126.96

Finding the Fourth Proportional to 13,715.96, 18,927.63 and 8,126.96

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Solution

The fourth proportional to 13,715.96, 18,927.63 and 8,126.96 is: 11,214.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.96 : 18,927.63 = 8,126.96 : x
  2. Step 2: Convert to fraction form
    13,715.96/18,927.63 = 8,126.96/x
  3. Step 3: Cross multiply
    13,715.96x = 18,927.63 × 8,126.96
  4. Step 4: Simplify right side
    13,715.96x = 153,824,091.90
  5. Step 5: Solve for x
    x = 153,824,091.90/13,715.96
  6. Step 6: Final answer
    x = 11,214.97

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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.