Home / 17,631.60-26,456.69-7,777.68

Finding the Fourth Proportional to 17,631.60, 26,456.69 and 7,777.68

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Solution

The fourth proportional to 17,631.60, 26,456.69 and 7,777.68 is: 11,670.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,631.60 : 26,456.69 = 7,777.68 : x
  2. Step 2: Convert to fraction form
    17,631.60/26,456.69 = 7,777.68/x
  3. Step 3: Cross multiply
    17,631.60x = 26,456.69 × 7,777.68
  4. Step 4: Simplify right side
    17,631.60x = 205,771,668.68
  5. Step 5: Solve for x
    x = 205,771,668.68/17,631.60
  6. Step 6: Final answer
    x = 11,670.62

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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.