Home / 13,009.80-19,514.70-5,989.80

Finding the Fourth Proportional to 13,009.80, 19,514.70 and 5,989.80

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Solution

The fourth proportional to 13,009.80, 19,514.70 and 5,989.80 is: 8,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.80 : 19,514.70 = 5,989.80 : x
  2. Step 2: Convert to fraction form
    13,009.80/19,514.70 = 5,989.80/x
  3. Step 3: Cross multiply
    13,009.80x = 19,514.70 × 5,989.80
  4. Step 4: Simplify right side
    13,009.80x = 116,889,150.06
  5. Step 5: Solve for x
    x = 116,889,150.06/13,009.80
  6. Step 6: Final answer
    x = 8,984.70

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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.