Home / 18,541.74-27,812.73-4,690.78

Finding the Fourth Proportional to 18,541.74, 27,812.73 and 4,690.78

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Solution

The fourth proportional to 18,541.74, 27,812.73 and 4,690.78 is: 7,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,541.74 : 27,812.73 = 4,690.78 : x
  2. Step 2: Convert to fraction form
    18,541.74/27,812.73 = 4,690.78/x
  3. Step 3: Cross multiply
    18,541.74x = 27,812.73 × 4,690.78
  4. Step 4: Simplify right side
    18,541.74x = 130,463,397.63
  5. Step 5: Solve for x
    x = 130,463,397.63/18,541.74
  6. Step 6: Final answer
    x = 7,036.20

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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.