Home / 13,908.02-19,193.29-7,619.99

Finding the Fourth Proportional to 13,908.02, 19,193.29 and 7,619.99

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Solution

The fourth proportional to 13,908.02, 19,193.29 and 7,619.99 is: 10,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.02 : 19,193.29 = 7,619.99 : x
  2. Step 2: Convert to fraction form
    13,908.02/19,193.29 = 7,619.99/x
  3. Step 3: Cross multiply
    13,908.02x = 19,193.29 × 7,619.99
  4. Step 4: Simplify right side
    13,908.02x = 146,252,562.85
  5. Step 5: Solve for x
    x = 146,252,562.85/13,908.02
  6. Step 6: Final answer
    x = 10,515.70

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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.