Home / 18,368.46-27,548.55-5,220.54

Finding the Fourth Proportional to 18,368.46, 27,548.55 and 5,220.54

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Solution

The fourth proportional to 18,368.46, 27,548.55 and 5,220.54 is: 7,829.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.46 : 27,548.55 = 5,220.54 : x
  2. Step 2: Convert to fraction form
    18,368.46/27,548.55 = 5,220.54/x
  3. Step 3: Cross multiply
    18,368.46x = 27,548.55 × 5,220.54
  4. Step 4: Simplify right side
    18,368.46x = 143,818,307.22
  5. Step 5: Solve for x
    x = 143,818,307.22/18,368.46
  6. Step 6: Final answer
    x = 7,829.63

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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.