Home / 13,803.35-19,048.84-7,515.72

Finding the Fourth Proportional to 13,803.35, 19,048.84 and 7,515.72

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Solution

The fourth proportional to 13,803.35, 19,048.84 and 7,515.72 is: 10,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.35 : 19,048.84 = 7,515.72 : x
  2. Step 2: Convert to fraction form
    13,803.35/19,048.84 = 7,515.72/x
  3. Step 3: Cross multiply
    13,803.35x = 19,048.84 × 7,515.72
  4. Step 4: Simplify right side
    13,803.35x = 143,165,728.98
  5. Step 5: Solve for x
    x = 143,165,728.98/13,803.35
  6. Step 6: Final answer
    x = 10,371.81

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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.