Home / 18,307.49-27,442.37-7,209.68

Finding the Fourth Proportional to 18,307.49, 27,442.37 and 7,209.68

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Solution

The fourth proportional to 18,307.49, 27,442.37 and 7,209.68 is: 10,807.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.49 : 27,442.37 = 7,209.68 : x
  2. Step 2: Convert to fraction form
    18,307.49/27,442.37 = 7,209.68/x
  3. Step 3: Cross multiply
    18,307.49x = 27,442.37 × 7,209.68
  4. Step 4: Simplify right side
    18,307.49x = 197,850,586.95
  5. Step 5: Solve for x
    x = 197,850,586.95/18,307.49
  6. Step 6: Final answer
    x = 10,807.09

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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.