Home / 13,029.80-19,544.70-9,919.40

Finding the Fourth Proportional to 13,029.80, 19,544.70 and 9,919.40

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Solution

The fourth proportional to 13,029.80, 19,544.70 and 9,919.40 is: 14,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029.80 : 19,544.70 = 9,919.40 : x
  2. Step 2: Convert to fraction form
    13,029.80/19,544.70 = 9,919.40/x
  3. Step 3: Cross multiply
    13,029.80x = 19,544.70 × 9,919.40
  4. Step 4: Simplify right side
    13,029.80x = 193,871,697.18
  5. Step 5: Solve for x
    x = 193,871,697.18/13,029.80
  6. Step 6: Final answer
    x = 14,879.10

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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.