Home / 19,811.04-29,687.40-8,707.56

Finding the Fourth Proportional to 19,811.04, 29,687.40 and 8,707.56

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Solution

The fourth proportional to 19,811.04, 29,687.40 and 8,707.56 is: 13,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.04 : 29,687.40 = 8,707.56 : x
  2. Step 2: Convert to fraction form
    19,811.04/29,687.40 = 8,707.56/x
  3. Step 3: Cross multiply
    19,811.04x = 29,687.40 × 8,707.56
  4. Step 4: Simplify right side
    19,811.04x = 258,504,816.74
  5. Step 5: Solve for x
    x = 258,504,816.74/19,811.04
  6. Step 6: Final answer
    x = 13,048.52

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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.