Home / 15,116.02-20,858.82-8,399.50

Finding the Fourth Proportional to 15,116.02, 20,858.82 and 8,399.50

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Solution

The fourth proportional to 15,116.02, 20,858.82 and 8,399.50 is: 11,590.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.02 : 20,858.82 = 8,399.50 : x
  2. Step 2: Convert to fraction form
    15,116.02/20,858.82 = 8,399.50/x
  3. Step 3: Cross multiply
    15,116.02x = 20,858.82 × 8,399.50
  4. Step 4: Simplify right side
    15,116.02x = 175,203,574.94
  5. Step 5: Solve for x
    x = 175,203,574.94/15,116.02
  6. Step 6: Final answer
    x = 11,590.59

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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.