Home / 15,405.88-21,260.06-8,332.26

Finding the Fourth Proportional to 15,405.88, 21,260.06 and 8,332.26

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Solution

The fourth proportional to 15,405.88, 21,260.06 and 8,332.26 is: 11,498.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,405.88 : 21,260.06 = 8,332.26 : x
  2. Step 2: Convert to fraction form
    15,405.88/21,260.06 = 8,332.26/x
  3. Step 3: Cross multiply
    15,405.88x = 21,260.06 × 8,332.26
  4. Step 4: Simplify right side
    15,405.88x = 177,144,347.54
  5. Step 5: Solve for x
    x = 177,144,347.54/15,405.88
  6. Step 6: Final answer
    x = 11,498.49

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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.