Home / 13,226.20-19,815.30-6,285.40

Finding the Fourth Proportional to 13,226.20, 19,815.30 and 6,285.40

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Solution

The fourth proportional to 13,226.20, 19,815.30 and 6,285.40 is: 9,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.20 : 19,815.30 = 6,285.40 : x
  2. Step 2: Convert to fraction form
    13,226.20/19,815.30 = 6,285.40/x
  3. Step 3: Cross multiply
    13,226.20x = 19,815.30 × 6,285.40
  4. Step 4: Simplify right side
    13,226.20x = 124,547,086.62
  5. Step 5: Solve for x
    x = 124,547,086.62/13,226.20
  6. Step 6: Final answer
    x = 9,416.69

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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.