Home / 15,468.48-21,330.37-9,179.64

Finding the Fourth Proportional to 15,468.48, 21,330.37 and 9,179.64

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Solution

The fourth proportional to 15,468.48, 21,330.37 and 9,179.64 is: 12,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.48 : 21,330.37 = 9,179.64 : x
  2. Step 2: Convert to fraction form
    15,468.48/21,330.37 = 9,179.64/x
  3. Step 3: Cross multiply
    15,468.48x = 21,330.37 × 9,179.64
  4. Step 4: Simplify right side
    15,468.48x = 195,805,071.77
  5. Step 5: Solve for x
    x = 195,805,071.77/15,468.48
  6. Step 6: Final answer
    x = 12,658.33

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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.