Home / 12,158.51-18,224.40-4,761.59

Finding the Fourth Proportional to 12,158.51, 18,224.40 and 4,761.59

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Solution

The fourth proportional to 12,158.51, 18,224.40 and 4,761.59 is: 7,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.51 : 18,224.40 = 4,761.59 : x
  2. Step 2: Convert to fraction form
    12,158.51/18,224.40 = 4,761.59/x
  3. Step 3: Cross multiply
    12,158.51x = 18,224.40 × 4,761.59
  4. Step 4: Simplify right side
    12,158.51x = 86,777,120.80
  5. Step 5: Solve for x
    x = 86,777,120.80/12,158.51
  6. Step 6: Final answer
    x = 7,137.15

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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.