Home / 18,430.74-27,642.03-5,280.18

Finding the Fourth Proportional to 18,430.74, 27,642.03 and 5,280.18

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Solution

The fourth proportional to 18,430.74, 27,642.03 and 5,280.18 is: 7,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.74 : 27,642.03 = 5,280.18 : x
  2. Step 2: Convert to fraction form
    18,430.74/27,642.03 = 5,280.18/x
  3. Step 3: Cross multiply
    18,430.74x = 27,642.03 × 5,280.18
  4. Step 4: Simplify right side
    18,430.74x = 145,954,893.97
  5. Step 5: Solve for x
    x = 145,954,893.97/18,430.74
  6. Step 6: Final answer
    x = 7,919.10

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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.