Home / 15,621.48-21,556.74-8,548.04

Finding the Fourth Proportional to 15,621.48, 21,556.74 and 8,548.04

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Solution

The fourth proportional to 15,621.48, 21,556.74 and 8,548.04 is: 11,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.48 : 21,556.74 = 8,548.04 : x
  2. Step 2: Convert to fraction form
    15,621.48/21,556.74 = 8,548.04/x
  3. Step 3: Cross multiply
    15,621.48x = 21,556.74 × 8,548.04
  4. Step 4: Simplify right side
    15,621.48x = 184,267,875.79
  5. Step 5: Solve for x
    x = 184,267,875.79/15,621.48
  6. Step 6: Final answer
    x = 11,795.80

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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.