Home / 15,483.22-21,366.75-8,409.58

Finding the Fourth Proportional to 15,483.22, 21,366.75 and 8,409.58

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Solution

The fourth proportional to 15,483.22, 21,366.75 and 8,409.58 is: 11,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.22 : 21,366.75 = 8,409.58 : x
  2. Step 2: Convert to fraction form
    15,483.22/21,366.75 = 8,409.58/x
  3. Step 3: Cross multiply
    15,483.22x = 21,366.75 × 8,409.58
  4. Step 4: Simplify right side
    15,483.22x = 179,685,393.47
  5. Step 5: Solve for x
    x = 179,685,393.47/15,483.22
  6. Step 6: Final answer
    x = 11,605.17

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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.