Home / 13,118.08-19,575.65-11,716.34

Finding the Fourth Proportional to 13,118.08, 19,575.65 and 11,716.34

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Solution

The fourth proportional to 13,118.08, 19,575.65 and 11,716.34 is: 17,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.08 : 19,575.65 = 11,716.34 : x
  2. Step 2: Convert to fraction form
    13,118.08/19,575.65 = 11,716.34/x
  3. Step 3: Cross multiply
    13,118.08x = 19,575.65 × 11,716.34
  4. Step 4: Simplify right side
    13,118.08x = 229,354,971.12
  5. Step 5: Solve for x
    x = 229,354,971.12/13,118.08
  6. Step 6: Final answer
    x = 17,483.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.