Home / 19,478.30-29,190.10-8,376.66

Finding the Fourth Proportional to 19,478.30, 29,190.10 and 8,376.66

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Solution

The fourth proportional to 19,478.30, 29,190.10 and 8,376.66 is: 12,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.30 : 29,190.10 = 8,376.66 : x
  2. Step 2: Convert to fraction form
    19,478.30/29,190.10 = 8,376.66/x
  3. Step 3: Cross multiply
    19,478.30x = 29,190.10 × 8,376.66
  4. Step 4: Simplify right side
    19,478.30x = 244,515,543.07
  5. Step 5: Solve for x
    x = 244,515,543.07/19,478.30
  6. Step 6: Final answer
    x = 12,553.23

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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.