Home / 18,534.69-27,806.40-5,386.68

Finding the Fourth Proportional to 18,534.69, 27,806.40 and 5,386.68

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Solution

The fourth proportional to 18,534.69, 27,806.40 and 5,386.68 is: 8,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,534.69 : 27,806.40 = 5,386.68 : x
  2. Step 2: Convert to fraction form
    18,534.69/27,806.40 = 5,386.68/x
  3. Step 3: Cross multiply
    18,534.69x = 27,806.40 × 5,386.68
  4. Step 4: Simplify right side
    18,534.69x = 149,784,178.75
  5. Step 5: Solve for x
    x = 149,784,178.75/18,534.69
  6. Step 6: Final answer
    x = 8,081.29

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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.