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Finding the Fourth Proportional to 19,416.80, 29,125.80 and 6,270.50

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Solution

The fourth proportional to 19,416.80, 29,125.80 and 6,270.50 is: 9,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,416.80 : 29,125.80 = 6,270.50 : x
  2. Step 2: Convert to fraction form
    19,416.80/29,125.80 = 6,270.50/x
  3. Step 3: Cross multiply
    19,416.80x = 29,125.80 × 6,270.50
  4. Step 4: Simplify right side
    19,416.80x = 182,633,328.90
  5. Step 5: Solve for x
    x = 182,633,328.90/19,416.80
  6. Step 6: Final answer
    x = 9,405.94

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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.