Home / 13,290.36-18,341.16-7,322.48

Finding the Fourth Proportional to 13,290.36, 18,341.16 and 7,322.48

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Solution

The fourth proportional to 13,290.36, 18,341.16 and 7,322.48 is: 10,105.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.36 : 18,341.16 = 7,322.48 : x
  2. Step 2: Convert to fraction form
    13,290.36/18,341.16 = 7,322.48/x
  3. Step 3: Cross multiply
    13,290.36x = 18,341.16 × 7,322.48
  4. Step 4: Simplify right side
    13,290.36x = 134,302,685.57
  5. Step 5: Solve for x
    x = 134,302,685.57/13,290.36
  6. Step 6: Final answer
    x = 10,105.27

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Similar ratio
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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.