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Finding the Fourth Proportional to 8,672.85, 13,012.29 and 6,303.15

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Solution

The fourth proportional to 8,672.85, 13,012.29 and 6,303.15 is: 9,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.85 : 13,012.29 = 6,303.15 : x
  2. Step 2: Convert to fraction form
    8,672.85/13,012.29 = 6,303.15/x
  3. Step 3: Cross multiply
    8,672.85x = 13,012.29 × 6,303.15
  4. Step 4: Simplify right side
    8,672.85x = 82,018,415.71
  5. Step 5: Solve for x
    x = 82,018,415.71/8,672.85
  6. Step 6: Final answer
    x = 9,456.92

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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.