Home / 13,118.22-19,646.01-7,260.30

Finding the Fourth Proportional to 13,118.22, 19,646.01 and 7,260.30

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Solution

The fourth proportional to 13,118.22, 19,646.01 and 7,260.30 is: 10,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.22 : 19,646.01 = 7,260.30 : x
  2. Step 2: Convert to fraction form
    13,118.22/19,646.01 = 7,260.30/x
  3. Step 3: Cross multiply
    13,118.22x = 19,646.01 × 7,260.30
  4. Step 4: Simplify right side
    13,118.22x = 142,635,926.40
  5. Step 5: Solve for x
    x = 142,635,926.40/13,118.22
  6. Step 6: Final answer
    x = 10,873.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.