Home / 13,338.89-18,408.03-7,370.93

Finding the Fourth Proportional to 13,338.89, 18,408.03 and 7,370.93

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Solution

The fourth proportional to 13,338.89, 18,408.03 and 7,370.93 is: 10,172.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.89 : 18,408.03 = 7,370.93 : x
  2. Step 2: Convert to fraction form
    13,338.89/18,408.03 = 7,370.93/x
  3. Step 3: Cross multiply
    13,338.89x = 18,408.03 × 7,370.93
  4. Step 4: Simplify right side
    13,338.89x = 135,684,263.71
  5. Step 5: Solve for x
    x = 135,684,263.71/13,338.89
  6. Step 6: Final answer
    x = 10,172.08

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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.