Home / 10,186.02-15,276.09-2,790.72

Finding the Fourth Proportional to 10,186.02, 15,276.09 and 2,790.72

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Solution

The fourth proportional to 10,186.02, 15,276.09 and 2,790.72 is: 4,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.02 : 15,276.09 = 2,790.72 : x
  2. Step 2: Convert to fraction form
    10,186.02/15,276.09 = 2,790.72/x
  3. Step 3: Cross multiply
    10,186.02x = 15,276.09 × 2,790.72
  4. Step 4: Simplify right side
    10,186.02x = 42,631,335.05
  5. Step 5: Solve for x
    x = 42,631,335.05/10,186.02
  6. Step 6: Final answer
    x = 4,185.28

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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.