Home / 15,514.96-21,409.75-8,708.35

Finding the Fourth Proportional to 15,514.96, 21,409.75 and 8,708.35

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Solution

The fourth proportional to 15,514.96, 21,409.75 and 8,708.35 is: 12,017.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.96 : 21,409.75 = 8,708.35 : x
  2. Step 2: Convert to fraction form
    15,514.96/21,409.75 = 8,708.35/x
  3. Step 3: Cross multiply
    15,514.96x = 21,409.75 × 8,708.35
  4. Step 4: Simplify right side
    15,514.96x = 186,443,596.41
  5. Step 5: Solve for x
    x = 186,443,596.41/15,514.96
  6. Step 6: Final answer
    x = 12,017.02

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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.