Home / 18,457.74-27,685.62-5,309.58

Finding the Fourth Proportional to 18,457.74, 27,685.62 and 5,309.58

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Solution

The fourth proportional to 18,457.74, 27,685.62 and 5,309.58 is: 7,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.74 : 27,685.62 = 5,309.58 : x
  2. Step 2: Convert to fraction form
    18,457.74/27,685.62 = 5,309.58/x
  3. Step 3: Cross multiply
    18,457.74x = 27,685.62 × 5,309.58
  4. Step 4: Simplify right side
    18,457.74x = 146,999,014.24
  5. Step 5: Solve for x
    x = 146,999,014.24/18,457.74
  6. Step 6: Final answer
    x = 7,964.09

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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.