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Finding the Fourth Proportional to 15,479.98, 23,208.06 and 7,682.74

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Solution

The fourth proportional to 15,479.98, 23,208.06 and 7,682.74 is: 11,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.98 : 23,208.06 = 7,682.74 : x
  2. Step 2: Convert to fraction form
    15,479.98/23,208.06 = 7,682.74/x
  3. Step 3: Cross multiply
    15,479.98x = 23,208.06 × 7,682.74
  4. Step 4: Simplify right side
    15,479.98x = 178,301,490.88
  5. Step 5: Solve for x
    x = 178,301,490.88/15,479.98
  6. Step 6: Final answer
    x = 11,518.20

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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.