Home / 15,407.25-21,261.99-8,333.67

Finding the Fourth Proportional to 15,407.25, 21,261.99 and 8,333.67

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Solution

The fourth proportional to 15,407.25, 21,261.99 and 8,333.67 is: 11,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.25 : 21,261.99 = 8,333.67 : x
  2. Step 2: Convert to fraction form
    15,407.25/21,261.99 = 8,333.67/x
  3. Step 3: Cross multiply
    15,407.25x = 21,261.99 × 8,333.67
  4. Step 4: Simplify right side
    15,407.25x = 177,190,366.53
  5. Step 5: Solve for x
    x = 177,190,366.53/15,407.25
  6. Step 6: Final answer
    x = 11,500.45

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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.