Home / 9,918.73-13,688.34-5,442.44

Finding the Fourth Proportional to 9,918.73, 13,688.34 and 5,442.44

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Solution

The fourth proportional to 9,918.73, 13,688.34 and 5,442.44 is: 7,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.73 : 13,688.34 = 5,442.44 : x
  2. Step 2: Convert to fraction form
    9,918.73/13,688.34 = 5,442.44/x
  3. Step 3: Cross multiply
    9,918.73x = 13,688.34 × 5,442.44
  4. Step 4: Simplify right side
    9,918.73x = 74,497,987.91
  5. Step 5: Solve for x
    x = 74,497,987.91/9,918.73
  6. Step 6: Final answer
    x = 7,510.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.