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Finding the Fourth Proportional to 8,697, 13,038.60 and 4,313.28

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Solution

The fourth proportional to 8,697, 13,038.60 and 4,313.28 is: 6,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697 : 13,038.60 = 4,313.28 : x
  2. Step 2: Convert to fraction form
    8,697/13,038.60 = 4,313.28/x
  3. Step 3: Cross multiply
    8,697x = 13,038.60 × 4,313.28
  4. Step 4: Simplify right side
    8,697x = 56,239,132.61
  5. Step 5: Solve for x
    x = 56,239,132.61/8,697
  6. Step 6: Final answer
    x = 6,466.50

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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.