Home / 13,110.10-18,071.73-10,453.30

Finding the Fourth Proportional to 13,110.10, 18,071.73 and 10,453.30

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Solution

The fourth proportional to 13,110.10, 18,071.73 and 10,453.30 is: 14,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.10 : 18,071.73 = 10,453.30 : x
  2. Step 2: Convert to fraction form
    13,110.10/18,071.73 = 10,453.30/x
  3. Step 3: Cross multiply
    13,110.10x = 18,071.73 × 10,453.30
  4. Step 4: Simplify right side
    13,110.10x = 188,909,215.21
  5. Step 5: Solve for x
    x = 188,909,215.21/13,110.10
  6. Step 6: Final answer
    x = 14,409.44

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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.