Home / 13,803.10-19,048.29-7,515.34

Finding the Fourth Proportional to 13,803.10, 19,048.29 and 7,515.34

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Solution

The fourth proportional to 13,803.10, 19,048.29 and 7,515.34 is: 10,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,803.10 : 19,048.29 = 7,515.34 : x
  2. Step 2: Convert to fraction form
    13,803.10/19,048.29 = 7,515.34/x
  3. Step 3: Cross multiply
    13,803.10x = 19,048.29 × 7,515.34
  4. Step 4: Simplify right side
    13,803.10x = 143,154,375.77
  5. Step 5: Solve for x
    x = 143,154,375.77/13,803.10
  6. Step 6: Final answer
    x = 10,371.18

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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.