Home / 12,635.21-17,435.40-12,210.57

Finding the Fourth Proportional to 12,635.21, 17,435.40 and 12,210.57

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Solution

The fourth proportional to 12,635.21, 17,435.40 and 12,210.57 is: 16,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.21 : 17,435.40 = 12,210.57 : x
  2. Step 2: Convert to fraction form
    12,635.21/17,435.40 = 12,210.57/x
  3. Step 3: Cross multiply
    12,635.21x = 17,435.40 × 12,210.57
  4. Step 4: Simplify right side
    12,635.21x = 212,896,172.18
  5. Step 5: Solve for x
    x = 212,896,172.18/12,635.21
  6. Step 6: Final answer
    x = 16,849.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.