Home / 13,296.10-18,348.40-7,328.32

Finding the Fourth Proportional to 13,296.10, 18,348.40 and 7,328.32

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Solution

The fourth proportional to 13,296.10, 18,348.40 and 7,328.32 is: 10,112.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.10 : 18,348.40 = 7,328.32 : x
  2. Step 2: Convert to fraction form
    13,296.10/18,348.40 = 7,328.32/x
  3. Step 3: Cross multiply
    13,296.10x = 18,348.40 × 7,328.32
  4. Step 4: Simplify right side
    13,296.10x = 134,462,992.58
  5. Step 5: Solve for x
    x = 134,462,992.58/13,296.10
  6. Step 6: Final answer
    x = 10,112.97

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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.