Home / 13,240.40-19,828.20-6,306.80

Finding the Fourth Proportional to 13,240.40, 19,828.20 and 6,306.80

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Solution

The fourth proportional to 13,240.40, 19,828.20 and 6,306.80 is: 9,444.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.40 : 19,828.20 = 6,306.80 : x
  2. Step 2: Convert to fraction form
    13,240.40/19,828.20 = 6,306.80/x
  3. Step 3: Cross multiply
    13,240.40x = 19,828.20 × 6,306.80
  4. Step 4: Simplify right side
    13,240.40x = 125,052,491.76
  5. Step 5: Solve for x
    x = 125,052,491.76/13,240.40
  6. Step 6: Final answer
    x = 9,444.77

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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.