Home / 13,518.73-18,654.74-7,851.67

Finding the Fourth Proportional to 13,518.73, 18,654.74 and 7,851.67

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Solution

The fourth proportional to 13,518.73, 18,654.74 and 7,851.67 is: 10,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.73 : 18,654.74 = 7,851.67 : x
  2. Step 2: Convert to fraction form
    13,518.73/18,654.74 = 7,851.67/x
  3. Step 3: Cross multiply
    13,518.73x = 18,654.74 × 7,851.67
  4. Step 4: Simplify right side
    13,518.73x = 146,470,805.96
  5. Step 5: Solve for x
    x = 146,470,805.96/13,518.73
  6. Step 6: Final answer
    x = 10,834.66

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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.