Home / 18,651.04-25,731.36-10,690.32

Finding the Fourth Proportional to 18,651.04, 25,731.36 and 10,690.32

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Solution

The fourth proportional to 18,651.04, 25,731.36 and 10,690.32 is: 14,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.04 : 25,731.36 = 10,690.32 : x
  2. Step 2: Convert to fraction form
    18,651.04/25,731.36 = 10,690.32/x
  3. Step 3: Cross multiply
    18,651.04x = 25,731.36 × 10,690.32
  4. Step 4: Simplify right side
    18,651.04x = 275,076,472.44
  5. Step 5: Solve for x
    x = 275,076,472.44/18,651.04
  6. Step 6: Final answer
    x = 14,748.59

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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.