Home / 15,314.24-21,127.62-8,849.61

Finding the Fourth Proportional to 15,314.24, 21,127.62 and 8,849.61

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Solution

The fourth proportional to 15,314.24, 21,127.62 and 8,849.61 is: 12,208.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.24 : 21,127.62 = 8,849.61 : x
  2. Step 2: Convert to fraction form
    15,314.24/21,127.62 = 8,849.61/x
  3. Step 3: Cross multiply
    15,314.24x = 21,127.62 × 8,849.61
  4. Step 4: Simplify right side
    15,314.24x = 186,971,197.23
  5. Step 5: Solve for x
    x = 186,971,197.23/15,314.24
  6. Step 6: Final answer
    x = 12,208.98

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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.