Home / 15,557.53-21,469.30-8,483.80

Finding the Fourth Proportional to 15,557.53, 21,469.30 and 8,483.80

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Solution

The fourth proportional to 15,557.53, 21,469.30 and 8,483.80 is: 11,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.53 : 21,469.30 = 8,483.80 : x
  2. Step 2: Convert to fraction form
    15,557.53/21,469.30 = 8,483.80/x
  3. Step 3: Cross multiply
    15,557.53x = 21,469.30 × 8,483.80
  4. Step 4: Simplify right side
    15,557.53x = 182,141,247.34
  5. Step 5: Solve for x
    x = 182,141,247.34/15,557.53
  6. Step 6: Final answer
    x = 11,707.59

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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.