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Finding the Fourth Proportional to 8,477.30, 12,702.03 and 8,153.30

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Solution

The fourth proportional to 8,477.30, 12,702.03 and 8,153.30 is: 12,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.30 : 12,702.03 = 8,153.30 : x
  2. Step 2: Convert to fraction form
    8,477.30/12,702.03 = 8,153.30/x
  3. Step 3: Cross multiply
    8,477.30x = 12,702.03 × 8,153.30
  4. Step 4: Simplify right side
    8,477.30x = 103,563,461.20
  5. Step 5: Solve for x
    x = 103,563,461.20/8,477.30
  6. Step 6: Final answer
    x = 12,216.56

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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.