Home / 13,749.62-18,974.69-7,461.99

Finding the Fourth Proportional to 13,749.62, 18,974.69 and 7,461.99

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Solution

The fourth proportional to 13,749.62, 18,974.69 and 7,461.99 is: 10,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.62 : 18,974.69 = 7,461.99 : x
  2. Step 2: Convert to fraction form
    13,749.62/18,974.69 = 7,461.99/x
  3. Step 3: Cross multiply
    13,749.62x = 18,974.69 × 7,461.99
  4. Step 4: Simplify right side
    13,749.62x = 141,588,937.71
  5. Step 5: Solve for x
    x = 141,588,937.71/13,749.62
  6. Step 6: Final answer
    x = 10,297.67

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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.