Home / 12,357.60-18,536.46-3,123.60

Finding the Fourth Proportional to 12,357.60, 18,536.46 and 3,123.60

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Solution

The fourth proportional to 12,357.60, 18,536.46 and 3,123.60 is: 4,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.60 : 18,536.46 = 3,123.60 : x
  2. Step 2: Convert to fraction form
    12,357.60/18,536.46 = 3,123.60/x
  3. Step 3: Cross multiply
    12,357.60x = 18,536.46 × 3,123.60
  4. Step 4: Simplify right side
    12,357.60x = 57,900,486.46
  5. Step 5: Solve for x
    x = 57,900,486.46/12,357.60
  6. Step 6: Final answer
    x = 4,685.42

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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.