Home / 15,689.04-21,647.14-8,883.15

Finding the Fourth Proportional to 15,689.04, 21,647.14 and 8,883.15

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Solution

The fourth proportional to 15,689.04, 21,647.14 and 8,883.15 is: 12,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689.04 : 21,647.14 = 8,883.15 : x
  2. Step 2: Convert to fraction form
    15,689.04/21,647.14 = 8,883.15/x
  3. Step 3: Cross multiply
    15,689.04x = 21,647.14 × 8,883.15
  4. Step 4: Simplify right side
    15,689.04x = 192,294,791.69
  5. Step 5: Solve for x
    x = 192,294,791.69/15,689.04
  6. Step 6: Final answer
    x = 12,256.63

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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.