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Finding the Fourth Proportional to 14,844.56, 20,485.47 and 8,130.19

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Solution

The fourth proportional to 14,844.56, 20,485.47 and 8,130.19 is: 11,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.56 : 20,485.47 = 8,130.19 : x
  2. Step 2: Convert to fraction form
    14,844.56/20,485.47 = 8,130.19/x
  3. Step 3: Cross multiply
    14,844.56x = 20,485.47 × 8,130.19
  4. Step 4: Simplify right side
    14,844.56x = 166,550,763.34
  5. Step 5: Solve for x
    x = 166,550,763.34/14,844.56
  6. Step 6: Final answer
    x = 11,219.65

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Double scale
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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.