Home / 15,409.25-21,264.74-8,335.67

Finding the Fourth Proportional to 15,409.25, 21,264.74 and 8,335.67

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Solution

The fourth proportional to 15,409.25, 21,264.74 and 8,335.67 is: 11,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.25 : 21,264.74 = 8,335.67 : x
  2. Step 2: Convert to fraction form
    15,409.25/21,264.74 = 8,335.67/x
  3. Step 3: Cross multiply
    15,409.25x = 21,264.74 × 8,335.67
  4. Step 4: Simplify right side
    15,409.25x = 177,255,855.28
  5. Step 5: Solve for x
    x = 177,255,855.28/15,409.25
  6. Step 6: Final answer
    x = 11,503.21

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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.