Home / 13,331.08-18,396.75-7,362.34

Finding the Fourth Proportional to 13,331.08, 18,396.75 and 7,362.34

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Solution

The fourth proportional to 13,331.08, 18,396.75 and 7,362.34 is: 10,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.08 : 18,396.75 = 7,362.34 : x
  2. Step 2: Convert to fraction form
    13,331.08/18,396.75 = 7,362.34/x
  3. Step 3: Cross multiply
    13,331.08x = 18,396.75 × 7,362.34
  4. Step 4: Simplify right side
    13,331.08x = 135,443,151.37
  5. Step 5: Solve for x
    x = 135,443,151.37/13,331.08
  6. Step 6: Final answer
    x = 10,159.95

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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.