Home / 15,456.42-21,329.01-8,741.66

Finding the Fourth Proportional to 15,456.42, 21,329.01 and 8,741.66

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Solution

The fourth proportional to 15,456.42, 21,329.01 and 8,741.66 is: 12,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.42 : 21,329.01 = 8,741.66 : x
  2. Step 2: Convert to fraction form
    15,456.42/21,329.01 = 8,741.66/x
  3. Step 3: Cross multiply
    15,456.42x = 21,329.01 × 8,741.66
  4. Step 4: Simplify right side
    15,456.42x = 186,450,846.91
  5. Step 5: Solve for x
    x = 186,450,846.91/15,456.42
  6. Step 6: Final answer
    x = 12,063.00

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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.