Home / 43,151.52-64,727.26-11,986.76

Finding the Fourth Proportional to 43,151.52, 64,727.26 and 11,986.76

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Solution

The fourth proportional to 43,151.52, 64,727.26 and 11,986.76 is: 17,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,151.52 : 64,727.26 = 11,986.76 : x
  2. Step 2: Convert to fraction form
    43,151.52/64,727.26 = 11,986.76/x
  3. Step 3: Cross multiply
    43,151.52x = 64,727.26 × 11,986.76
  4. Step 4: Simplify right side
    43,151.52x = 775,870,131.08
  5. Step 5: Solve for x
    x = 775,870,131.08/43,151.52
  6. Step 6: Final answer
    x = 17,980.13

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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.