Home / 13,036.20-19,554.30-12,820.20

Finding the Fourth Proportional to 13,036.20, 19,554.30 and 12,820.20

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Solution

The fourth proportional to 13,036.20, 19,554.30 and 12,820.20 is: 19,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,036.20 : 19,554.30 = 12,820.20 : x
  2. Step 2: Convert to fraction form
    13,036.20/19,554.30 = 12,820.20/x
  3. Step 3: Cross multiply
    13,036.20x = 19,554.30 × 12,820.20
  4. Step 4: Simplify right side
    13,036.20x = 250,690,036.86
  5. Step 5: Solve for x
    x = 250,690,036.86/13,036.20
  6. Step 6: Final answer
    x = 19,230.30

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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.