Home / 15,630.24-21,570.35-8,556.66

Finding the Fourth Proportional to 15,630.24, 21,570.35 and 8,556.66

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Solution

The fourth proportional to 15,630.24, 21,570.35 and 8,556.66 is: 11,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.24 : 21,570.35 = 8,556.66 : x
  2. Step 2: Convert to fraction form
    15,630.24/21,570.35 = 8,556.66/x
  3. Step 3: Cross multiply
    15,630.24x = 21,570.35 × 8,556.66
  4. Step 4: Simplify right side
    15,630.24x = 184,570,108.25
  5. Step 5: Solve for x
    x = 184,570,108.25/15,630.24
  6. Step 6: Final answer
    x = 11,808.53

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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.