Home / 16,921.50-25,384.68-5,235.63

Finding the Fourth Proportional to 16,921.50, 25,384.68 and 5,235.63

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Solution

The fourth proportional to 16,921.50, 25,384.68 and 5,235.63 is: 7,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.50 : 25,384.68 = 5,235.63 : x
  2. Step 2: Convert to fraction form
    16,921.50/25,384.68 = 5,235.63/x
  3. Step 3: Cross multiply
    16,921.50x = 25,384.68 × 5,235.63
  4. Step 4: Simplify right side
    16,921.50x = 132,904,792.15
  5. Step 5: Solve for x
    x = 132,904,792.15/16,921.50
  6. Step 6: Final answer
    x = 7,854.20

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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.