Home / 18,851.58-28,274.16-9,495.78

Finding the Fourth Proportional to 18,851.58, 28,274.16 and 9,495.78

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Solution

The fourth proportional to 18,851.58, 28,274.16 and 9,495.78 is: 14,242.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.58 : 28,274.16 = 9,495.78 : x
  2. Step 2: Convert to fraction form
    18,851.58/28,274.16 = 9,495.78/x
  3. Step 3: Cross multiply
    18,851.58x = 28,274.16 × 9,495.78
  4. Step 4: Simplify right side
    18,851.58x = 268,485,203.04
  5. Step 5: Solve for x
    x = 268,485,203.04/18,851.58
  6. Step 6: Final answer
    x = 14,242.05

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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.