Home / 13,663.89-20,495.86-3,803.18

Finding the Fourth Proportional to 13,663.89, 20,495.86 and 3,803.18

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Solution

The fourth proportional to 13,663.89, 20,495.86 and 3,803.18 is: 5,704.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.89 : 20,495.86 = 3,803.18 : x
  2. Step 2: Convert to fraction form
    13,663.89/20,495.86 = 3,803.18/x
  3. Step 3: Cross multiply
    13,663.89x = 20,495.86 × 3,803.18
  4. Step 4: Simplify right side
    13,663.89x = 77,949,332.85
  5. Step 5: Solve for x
    x = 77,949,332.85/13,663.89
  6. Step 6: Final answer
    x = 5,704.77

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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.