Home / 13,803.24-19,048.32-7,515.60

Finding the Fourth Proportional to 13,803.24, 19,048.32 and 7,515.60

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Solution

The fourth proportional to 13,803.24, 19,048.32 and 7,515.60 is: 10,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.24 : 19,048.32 = 7,515.60 : x
  2. Step 2: Convert to fraction form
    13,803.24/19,048.32 = 7,515.60/x
  3. Step 3: Cross multiply
    13,803.24x = 19,048.32 × 7,515.60
  4. Step 4: Simplify right side
    13,803.24x = 143,159,553.79
  5. Step 5: Solve for x
    x = 143,159,553.79/13,803.24
  6. Step 6: Final answer
    x = 10,371.45

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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.