Home / 13,909.19-19,180.26-9,665.06

Finding the Fourth Proportional to 13,909.19, 19,180.26 and 9,665.06

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Solution

The fourth proportional to 13,909.19, 19,180.26 and 9,665.06 is: 13,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,909.19 : 19,180.26 = 9,665.06 : x
  2. Step 2: Convert to fraction form
    13,909.19/19,180.26 = 9,665.06/x
  3. Step 3: Cross multiply
    13,909.19x = 19,180.26 × 9,665.06
  4. Step 4: Simplify right side
    13,909.19x = 185,378,267.81
  5. Step 5: Solve for x
    x = 185,378,267.81/13,909.19
  6. Step 6: Final answer
    x = 13,327.76

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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.