Home / 12,445.84-18,671.72-3,561.30

Finding the Fourth Proportional to 12,445.84, 18,671.72 and 3,561.30

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Solution

The fourth proportional to 12,445.84, 18,671.72 and 3,561.30 is: 5,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.84 : 18,671.72 = 3,561.30 : x
  2. Step 2: Convert to fraction form
    12,445.84/18,671.72 = 3,561.30/x
  3. Step 3: Cross multiply
    12,445.84x = 18,671.72 × 3,561.30
  4. Step 4: Simplify right side
    12,445.84x = 66,495,596.44
  5. Step 5: Solve for x
    x = 66,495,596.44/12,445.84
  6. Step 6: Final answer
    x = 5,342.80

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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.