Home / 15,146.08-20,898.54-8,857.24

Finding the Fourth Proportional to 15,146.08, 20,898.54 and 8,857.24

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Solution

The fourth proportional to 15,146.08, 20,898.54 and 8,857.24 is: 12,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.08 : 20,898.54 = 8,857.24 : x
  2. Step 2: Convert to fraction form
    15,146.08/20,898.54 = 8,857.24/x
  3. Step 3: Cross multiply
    15,146.08x = 20,898.54 × 8,857.24
  4. Step 4: Simplify right side
    15,146.08x = 185,103,384.43
  5. Step 5: Solve for x
    x = 185,103,384.43/15,146.08
  6. Step 6: Final answer
    x = 12,221.21

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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.