Home / 13,209.58-19,816.96-4,889.66

Finding the Fourth Proportional to 13,209.58, 19,816.96 and 4,889.66

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Solution

The fourth proportional to 13,209.58, 19,816.96 and 4,889.66 is: 7,335.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.58 : 19,816.96 = 4,889.66 : x
  2. Step 2: Convert to fraction form
    13,209.58/19,816.96 = 4,889.66/x
  3. Step 3: Cross multiply
    13,209.58x = 19,816.96 × 4,889.66
  4. Step 4: Simplify right side
    13,209.58x = 96,898,196.63
  5. Step 5: Solve for x
    x = 96,898,196.63/13,209.58
  6. Step 6: Final answer
    x = 7,335.45

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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.