Home / 12,291.36-18,437.15-3,526.56

Finding the Fourth Proportional to 12,291.36, 18,437.15 and 3,526.56

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Solution

The fourth proportional to 12,291.36, 18,437.15 and 3,526.56 is: 5,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.36 : 18,437.15 = 3,526.56 : x
  2. Step 2: Convert to fraction form
    12,291.36/18,437.15 = 3,526.56/x
  3. Step 3: Cross multiply
    12,291.36x = 18,437.15 × 3,526.56
  4. Step 4: Simplify right side
    12,291.36x = 65,019,605.89
  5. Step 5: Solve for x
    x = 65,019,605.89/12,291.36
  6. Step 6: Final answer
    x = 5,289.86

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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.