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Finding the Fourth Proportional to 19,130.73, 28,699.06 and 9,765.67

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Solution

The fourth proportional to 19,130.73, 28,699.06 and 9,765.67 is: 14,650.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.73 : 28,699.06 = 9,765.67 : x
  2. Step 2: Convert to fraction form
    19,130.73/28,699.06 = 9,765.67/x
  3. Step 3: Cross multiply
    19,130.73x = 28,699.06 × 9,765.67
  4. Step 4: Simplify right side
    19,130.73x = 280,265,549.27
  5. Step 5: Solve for x
    x = 280,265,549.27/19,130.73
  6. Step 6: Final answer
    x = 14,650.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.