Home / 18,385.98-27,580.02-5,239.38

Finding the Fourth Proportional to 18,385.98, 27,580.02 and 5,239.38

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Solution

The fourth proportional to 18,385.98, 27,580.02 and 5,239.38 is: 7,859.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.98 : 27,580.02 = 5,239.38 : x
  2. Step 2: Convert to fraction form
    18,385.98/27,580.02 = 5,239.38/x
  3. Step 3: Cross multiply
    18,385.98x = 27,580.02 × 5,239.38
  4. Step 4: Simplify right side
    18,385.98x = 144,502,133.83
  5. Step 5: Solve for x
    x = 144,502,133.83/18,385.98
  6. Step 6: Final answer
    x = 7,859.36

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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.