Home / 18,537.28-27,807.43-5,389.63

Finding the Fourth Proportional to 18,537.28, 27,807.43 and 5,389.63

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Solution

The fourth proportional to 18,537.28, 27,807.43 and 5,389.63 is: 8,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.28 : 27,807.43 = 5,389.63 : x
  2. Step 2: Convert to fraction form
    18,537.28/27,807.43 = 5,389.63/x
  3. Step 3: Cross multiply
    18,537.28x = 27,807.43 × 5,389.63
  4. Step 4: Simplify right side
    18,537.28x = 149,871,758.95
  5. Step 5: Solve for x
    x = 149,871,758.95/18,537.28
  6. Step 6: Final answer
    x = 8,084.89

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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.