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Finding the Fourth Proportional to 14,729.30, 20,325.03 and 8,762.30

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Solution

The fourth proportional to 14,729.30, 20,325.03 and 8,762.30 is: 12,091.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,729.30 : 20,325.03 = 8,762.30 : x
  2. Step 2: Convert to fraction form
    14,729.30/20,325.03 = 8,762.30/x
  3. Step 3: Cross multiply
    14,729.30x = 20,325.03 × 8,762.30
  4. Step 4: Simplify right side
    14,729.30x = 178,094,010.37
  5. Step 5: Solve for x
    x = 178,094,010.37/14,729.30
  6. Step 6: Final answer
    x = 12,091.14

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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.