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Finding the Fourth Proportional to 15,012.66, 22,525.44 and 8,428.98

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Solution

The fourth proportional to 15,012.66, 22,525.44 and 8,428.98 is: 12,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.66 : 22,525.44 = 8,428.98 : x
  2. Step 2: Convert to fraction form
    15,012.66/22,525.44 = 8,428.98/x
  3. Step 3: Cross multiply
    15,012.66x = 22,525.44 × 8,428.98
  4. Step 4: Simplify right side
    15,012.66x = 189,866,483.25
  5. Step 5: Solve for x
    x = 189,866,483.25/15,012.66
  6. Step 6: Final answer
    x = 12,647.09

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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.