Home / 16,921.17-25,386.21-6,391.35

Finding the Fourth Proportional to 16,921.17, 25,386.21 and 6,391.35

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Solution

The fourth proportional to 16,921.17, 25,386.21 and 6,391.35 is: 9,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.17 : 25,386.21 = 6,391.35 : x
  2. Step 2: Convert to fraction form
    16,921.17/25,386.21 = 6,391.35/x
  3. Step 3: Cross multiply
    16,921.17x = 25,386.21 × 6,391.35
  4. Step 4: Simplify right side
    16,921.17x = 162,252,153.28
  5. Step 5: Solve for x
    x = 162,252,153.28/16,921.17
  6. Step 6: Final answer
    x = 9,588.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.