Home / 12,467.79-18,701.76-3,702.78

Finding the Fourth Proportional to 12,467.79, 18,701.76 and 3,702.78

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Solution

The fourth proportional to 12,467.79, 18,701.76 and 3,702.78 is: 5,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,467.79 : 18,701.76 = 3,702.78 : x
  2. Step 2: Convert to fraction form
    12,467.79/18,701.76 = 3,702.78/x
  3. Step 3: Cross multiply
    12,467.79x = 18,701.76 × 3,702.78
  4. Step 4: Simplify right side
    12,467.79x = 69,248,502.89
  5. Step 5: Solve for x
    x = 69,248,502.89/12,467.79
  6. Step 6: Final answer
    x = 5,554.19

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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.