Home / 13,226.40-19,839.60-10,306.89

Finding the Fourth Proportional to 13,226.40, 19,839.60 and 10,306.89

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Solution

The fourth proportional to 13,226.40, 19,839.60 and 10,306.89 is: 15,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.40 : 19,839.60 = 10,306.89 : x
  2. Step 2: Convert to fraction form
    13,226.40/19,839.60 = 10,306.89/x
  3. Step 3: Cross multiply
    13,226.40x = 19,839.60 × 10,306.89
  4. Step 4: Simplify right side
    13,226.40x = 204,484,574.84
  5. Step 5: Solve for x
    x = 204,484,574.84/13,226.40
  6. Step 6: Final answer
    x = 15,460.34

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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.