Home / 15,483.25-21,366.99-8,409.67

Finding the Fourth Proportional to 15,483.25, 21,366.99 and 8,409.67

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Solution

The fourth proportional to 15,483.25, 21,366.99 and 8,409.67 is: 11,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.25 : 21,366.99 = 8,409.67 : x
  2. Step 2: Convert to fraction form
    15,483.25/21,366.99 = 8,409.67/x
  3. Step 3: Cross multiply
    15,483.25x = 21,366.99 × 8,409.67
  4. Step 4: Simplify right side
    15,483.25x = 179,689,334.79
  5. Step 5: Solve for x
    x = 179,689,334.79/15,483.25
  6. Step 6: Final answer
    x = 11,605.40

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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.