Home / 12,440.10-18,658.80-3,555.96

Finding the Fourth Proportional to 12,440.10, 18,658.80 and 3,555.96

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Solution

The fourth proportional to 12,440.10, 18,658.80 and 3,555.96 is: 5,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.10 : 18,658.80 = 3,555.96 : x
  2. Step 2: Convert to fraction form
    12,440.10/18,658.80 = 3,555.96/x
  3. Step 3: Cross multiply
    12,440.10x = 18,658.80 × 3,555.96
  4. Step 4: Simplify right side
    12,440.10x = 66,349,946.45
  5. Step 5: Solve for x
    x = 66,349,946.45/12,440.10
  6. Step 6: Final answer
    x = 5,333.55

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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.