Home / 13,803.16-19,048.28-7,515.52

Finding the Fourth Proportional to 13,803.16, 19,048.28 and 7,515.52

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Solution

The fourth proportional to 13,803.16, 19,048.28 and 7,515.52 is: 10,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.16 : 19,048.28 = 7,515.52 : x
  2. Step 2: Convert to fraction form
    13,803.16/19,048.28 = 7,515.52/x
  3. Step 3: Cross multiply
    13,803.16x = 19,048.28 × 7,515.52
  4. Step 4: Simplify right side
    13,803.16x = 143,157,729.31
  5. Step 5: Solve for x
    x = 143,157,729.31/13,803.16
  6. Step 6: Final answer
    x = 10,371.37

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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.