Home / 12,253.76-18,378.14-3,486.32

Finding the Fourth Proportional to 12,253.76, 18,378.14 and 3,486.32

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Solution

The fourth proportional to 12,253.76, 18,378.14 and 3,486.32 is: 5,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.76 : 18,378.14 = 3,486.32 : x
  2. Step 2: Convert to fraction form
    12,253.76/18,378.14 = 3,486.32/x
  3. Step 3: Cross multiply
    12,253.76x = 18,378.14 × 3,486.32
  4. Step 4: Simplify right side
    12,253.76x = 64,071,967.72
  5. Step 5: Solve for x
    x = 64,071,967.72/12,253.76
  6. Step 6: Final answer
    x = 5,228.76

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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.