Home / 18,397.80-27,588.40-5,247.05

Finding the Fourth Proportional to 18,397.80, 27,588.40 and 5,247.05

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Solution

The fourth proportional to 18,397.80, 27,588.40 and 5,247.05 is: 7,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.80 : 27,588.40 = 5,247.05 : x
  2. Step 2: Convert to fraction form
    18,397.80/27,588.40 = 5,247.05/x
  3. Step 3: Cross multiply
    18,397.80x = 27,588.40 × 5,247.05
  4. Step 4: Simplify right side
    18,397.80x = 144,757,563.16
  5. Step 5: Solve for x
    x = 144,757,563.16/18,397.80
  6. Step 6: Final answer
    x = 7,868.20

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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.