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Finding the Fourth Proportional to 19,000.45, 26,220.45 and 10,503.10

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Solution

The fourth proportional to 19,000.45, 26,220.45 and 10,503.10 is: 14,494.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.45 : 26,220.45 = 10,503.10 : x
  2. Step 2: Convert to fraction form
    19,000.45/26,220.45 = 10,503.10/x
  3. Step 3: Cross multiply
    19,000.45x = 26,220.45 × 10,503.10
  4. Step 4: Simplify right side
    19,000.45x = 275,396,008.40
  5. Step 5: Solve for x
    x = 275,396,008.40/19,000.45
  6. Step 6: Final answer
    x = 14,494.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.