Home / 15,483.04-21,366.70-8,409.46

Finding the Fourth Proportional to 15,483.04, 21,366.70 and 8,409.46

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Solution

The fourth proportional to 15,483.04, 21,366.70 and 8,409.46 is: 11,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.04 : 21,366.70 = 8,409.46 : x
  2. Step 2: Convert to fraction form
    15,483.04/21,366.70 = 8,409.46/x
  3. Step 3: Cross multiply
    15,483.04x = 21,366.70 × 8,409.46
  4. Step 4: Simplify right side
    15,483.04x = 179,682,408.98
  5. Step 5: Solve for x
    x = 179,682,408.98/15,483.04
  6. Step 6: Final answer
    x = 11,605.11

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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.