Home / 12,070.05-18,110.25-5,051.72

Finding the Fourth Proportional to 12,070.05, 18,110.25 and 5,051.72

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Solution

The fourth proportional to 12,070.05, 18,110.25 and 5,051.72 is: 7,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,070.05 : 18,110.25 = 5,051.72 : x
  2. Step 2: Convert to fraction form
    12,070.05/18,110.25 = 5,051.72/x
  3. Step 3: Cross multiply
    12,070.05x = 18,110.25 × 5,051.72
  4. Step 4: Simplify right side
    12,070.05x = 91,487,821.58
  5. Step 5: Solve for x
    x = 91,487,821.58/12,070.05
  6. Step 6: Final answer
    x = 7,579.74

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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.