Home / 15,630.09-21,569.56-8,556.97

Finding the Fourth Proportional to 15,630.09, 21,569.56 and 8,556.97

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Solution

The fourth proportional to 15,630.09, 21,569.56 and 8,556.97 is: 11,808.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.09 : 21,569.56 = 8,556.97 : x
  2. Step 2: Convert to fraction form
    15,630.09/21,569.56 = 8,556.97/x
  3. Step 3: Cross multiply
    15,630.09x = 21,569.56 × 8,556.97
  4. Step 4: Simplify right side
    15,630.09x = 184,569,927.20
  5. Step 5: Solve for x
    x = 184,569,927.20/15,630.09
  6. Step 6: Final answer
    x = 11,808.63

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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.