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Finding the Fourth Proportional to 14,800.86, 20,401.47 and 10,019.30

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Solution

The fourth proportional to 14,800.86, 20,401.47 and 10,019.30 is: 13,810.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,800.86 : 20,401.47 = 10,019.30 : x
  2. Step 2: Convert to fraction form
    14,800.86/20,401.47 = 10,019.30/x
  3. Step 3: Cross multiply
    14,800.86x = 20,401.47 × 10,019.30
  4. Step 4: Simplify right side
    14,800.86x = 204,408,346.36
  5. Step 5: Solve for x
    x = 204,408,346.36/14,800.86
  6. Step 6: Final answer
    x = 13,810.57

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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.