Home / 15,464.25-21,332.61-9,789.39

Finding the Fourth Proportional to 15,464.25, 21,332.61 and 9,789.39

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Solution

The fourth proportional to 15,464.25, 21,332.61 and 9,789.39 is: 13,504.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.25 : 21,332.61 = 9,789.39 : x
  2. Step 2: Convert to fraction form
    15,464.25/21,332.61 = 9,789.39/x
  3. Step 3: Cross multiply
    15,464.25x = 21,332.61 × 9,789.39
  4. Step 4: Simplify right side
    15,464.25x = 208,833,239.01
  5. Step 5: Solve for x
    x = 208,833,239.01/15,464.25
  6. Step 6: Final answer
    x = 13,504.26

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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.