Home / 11,478.32-17,215.25-3,156.20

Finding the Fourth Proportional to 11,478.32, 17,215.25 and 3,156.20

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Solution

The fourth proportional to 11,478.32, 17,215.25 and 3,156.20 is: 4,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.32 : 17,215.25 = 3,156.20 : x
  2. Step 2: Convert to fraction form
    11,478.32/17,215.25 = 3,156.20/x
  3. Step 3: Cross multiply
    11,478.32x = 17,215.25 × 3,156.20
  4. Step 4: Simplify right side
    11,478.32x = 54,334,670.19
  5. Step 5: Solve for x
    x = 54,334,670.19/11,478.32
  6. Step 6: Final answer
    x = 4,733.68

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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.