Home / 11,478.33-17,215.23-3,156.21

Finding the Fourth Proportional to 11,478.33, 17,215.23 and 3,156.21

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Solution

The fourth proportional to 11,478.33, 17,215.23 and 3,156.21 is: 4,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.33 : 17,215.23 = 3,156.21 : x
  2. Step 2: Convert to fraction form
    11,478.33/17,215.23 = 3,156.21/x
  3. Step 3: Cross multiply
    11,478.33x = 17,215.23 × 3,156.21
  4. Step 4: Simplify right side
    11,478.33x = 54,334,881.08
  5. Step 5: Solve for x
    x = 54,334,881.08/11,478.33
  6. Step 6: Final answer
    x = 4,733.69

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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.