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Finding the Fourth Proportional to 8,703.36, 13,047.68 and 4,314.88

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Solution

The fourth proportional to 8,703.36, 13,047.68 and 4,314.88 is: 6,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.36 : 13,047.68 = 4,314.88 : x
  2. Step 2: Convert to fraction form
    8,703.36/13,047.68 = 4,314.88/x
  3. Step 3: Cross multiply
    8,703.36x = 13,047.68 × 4,314.88
  4. Step 4: Simplify right side
    8,703.36x = 56,299,173.48
  5. Step 5: Solve for x
    x = 56,299,173.48/8,703.36
  6. Step 6: Final answer
    x = 6,468.67

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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.