Home / 13,211.64-19,816.20-4,891.68

Finding the Fourth Proportional to 13,211.64, 19,816.20 and 4,891.68

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Solution

The fourth proportional to 13,211.64, 19,816.20 and 4,891.68 is: 7,337.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.64 : 19,816.20 = 4,891.68 : x
  2. Step 2: Convert to fraction form
    13,211.64/19,816.20 = 4,891.68/x
  3. Step 3: Cross multiply
    13,211.64x = 19,816.20 × 4,891.68
  4. Step 4: Simplify right side
    13,211.64x = 96,934,509.22
  5. Step 5: Solve for x
    x = 96,934,509.22/13,211.64
  6. Step 6: Final answer
    x = 7,337.05

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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.