Home / 18,612.74-27,890.40-11,582.22

Finding the Fourth Proportional to 18,612.74, 27,890.40 and 11,582.22

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Solution

The fourth proportional to 18,612.74, 27,890.40 and 11,582.22 is: 17,355.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.74 : 27,890.40 = 11,582.22 : x
  2. Step 2: Convert to fraction form
    18,612.74/27,890.40 = 11,582.22/x
  3. Step 3: Cross multiply
    18,612.74x = 27,890.40 × 11,582.22
  4. Step 4: Simplify right side
    18,612.74x = 323,032,628.81
  5. Step 5: Solve for x
    x = 323,032,628.81/18,612.74
  6. Step 6: Final answer
    x = 17,355.46

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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.