Home / 12,070.78-18,172.97-9,452.32

Finding the Fourth Proportional to 12,070.78, 18,172.97 and 9,452.32

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Solution

The fourth proportional to 12,070.78, 18,172.97 and 9,452.32 is: 14,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.78 : 18,172.97 = 9,452.32 : x
  2. Step 2: Convert to fraction form
    12,070.78/18,172.97 = 9,452.32/x
  3. Step 3: Cross multiply
    12,070.78x = 18,172.97 × 9,452.32
  4. Step 4: Simplify right side
    12,070.78x = 171,776,727.79
  5. Step 5: Solve for x
    x = 171,776,727.79/12,070.78
  6. Step 6: Final answer
    x = 14,230.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.