Home / 14,100.50-19,460.75-8,130.99

Finding the Fourth Proportional to 14,100.50, 19,460.75 and 8,130.99

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Solution

The fourth proportional to 14,100.50, 19,460.75 and 8,130.99 is: 11,221.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.50 : 19,460.75 = 8,130.99 : x
  2. Step 2: Convert to fraction form
    14,100.50/19,460.75 = 8,130.99/x
  3. Step 3: Cross multiply
    14,100.50x = 19,460.75 × 8,130.99
  4. Step 4: Simplify right side
    14,100.50x = 158,235,163.64
  5. Step 5: Solve for x
    x = 158,235,163.64/14,100.50
  6. Step 6: Final answer
    x = 11,221.95

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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.