Home / 13,313.74-18,373.98-7,346.56

Finding the Fourth Proportional to 13,313.74, 18,373.98 and 7,346.56

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Solution

The fourth proportional to 13,313.74, 18,373.98 and 7,346.56 is: 10,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.74 : 18,373.98 = 7,346.56 : x
  2. Step 2: Convert to fraction form
    13,313.74/18,373.98 = 7,346.56/x
  3. Step 3: Cross multiply
    13,313.74x = 18,373.98 × 7,346.56
  4. Step 4: Simplify right side
    13,313.74x = 134,985,546.51
  5. Step 5: Solve for x
    x = 134,985,546.51/13,313.74
  6. Step 6: Final answer
    x = 10,138.81

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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.