Home / 13,303.20-18,346.32-10,650.72

Finding the Fourth Proportional to 13,303.20, 18,346.32 and 10,650.72

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Solution

The fourth proportional to 13,303.20, 18,346.32 and 10,650.72 is: 14,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.20 : 18,346.32 = 10,650.72 : x
  2. Step 2: Convert to fraction form
    13,303.20/18,346.32 = 10,650.72/x
  3. Step 3: Cross multiply
    13,303.20x = 18,346.32 × 10,650.72
  4. Step 4: Simplify right side
    13,303.20x = 195,401,517.35
  5. Step 5: Solve for x
    x = 195,401,517.35/13,303.20
  6. Step 6: Final answer
    x = 14,688.31

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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.