Home / 9,918.52-13,686.77-5,442.26

Finding the Fourth Proportional to 9,918.52, 13,686.77 and 5,442.26

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Solution

The fourth proportional to 9,918.52, 13,686.77 and 5,442.26 is: 7,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.52 : 13,686.77 = 5,442.26 : x
  2. Step 2: Convert to fraction form
    9,918.52/13,686.77 = 5,442.26/x
  3. Step 3: Cross multiply
    9,918.52x = 13,686.77 × 5,442.26
  4. Step 4: Simplify right side
    9,918.52x = 74,486,906.07
  5. Step 5: Solve for x
    x = 74,486,906.07/9,918.52
  6. Step 6: Final answer
    x = 7,509.88

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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.