Home / 12,435.68-18,653.76-3,670.76

Finding the Fourth Proportional to 12,435.68, 18,653.76 and 3,670.76

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Solution

The fourth proportional to 12,435.68, 18,653.76 and 3,670.76 is: 5,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.68 : 18,653.76 = 3,670.76 : x
  2. Step 2: Convert to fraction form
    12,435.68/18,653.76 = 3,670.76/x
  3. Step 3: Cross multiply
    12,435.68x = 18,653.76 × 3,670.76
  4. Step 4: Simplify right side
    12,435.68x = 68,473,476.06
  5. Step 5: Solve for x
    x = 68,473,476.06/12,435.68
  6. Step 6: Final answer
    x = 5,506.21

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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.