Home / 10,426.56-14,401.44-8,439.36

Finding the Fourth Proportional to 10,426.56, 14,401.44 and 8,439.36

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Solution

The fourth proportional to 10,426.56, 14,401.44 and 8,439.36 is: 11,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.56 : 14,401.44 = 8,439.36 : x
  2. Step 2: Convert to fraction form
    10,426.56/14,401.44 = 8,439.36/x
  3. Step 3: Cross multiply
    10,426.56x = 14,401.44 × 8,439.36
  4. Step 4: Simplify right side
    10,426.56x = 121,538,936.68
  5. Step 5: Solve for x
    x = 121,538,936.68/10,426.56
  6. Step 6: Final answer
    x = 11,656.67

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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.