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Finding the Fourth Proportional to 12,158.58, 18,237.86 and 2,924.58

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Solution

The fourth proportional to 12,158.58, 18,237.86 and 2,924.58 is: 4,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.58 : 18,237.86 = 2,924.58 : x
  2. Step 2: Convert to fraction form
    12,158.58/18,237.86 = 2,924.58/x
  3. Step 3: Cross multiply
    12,158.58x = 18,237.86 × 2,924.58
  4. Step 4: Simplify right side
    12,158.58x = 53,338,080.60
  5. Step 5: Solve for x
    x = 53,338,080.60/12,158.58
  6. Step 6: Final answer
    x = 4,386.87

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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.