Home / 26,686.99-40,036.20-7,968.50

Finding the Fourth Proportional to 26,686.99, 40,036.20 and 7,968.50

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Solution

The fourth proportional to 26,686.99, 40,036.20 and 7,968.50 is: 11,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,686.99 : 40,036.20 = 7,968.50 : x
  2. Step 2: Convert to fraction form
    26,686.99/40,036.20 = 7,968.50/x
  3. Step 3: Cross multiply
    26,686.99x = 40,036.20 × 7,968.50
  4. Step 4: Simplify right side
    26,686.99x = 319,028,219.68
  5. Step 5: Solve for x
    x = 319,028,219.68/26,686.99
  6. Step 6: Final answer
    x = 11,954.45

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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.