Home / 10,290.21-15,435.27-3,364.71

Finding the Fourth Proportional to 10,290.21, 15,435.27 and 3,364.71

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Solution

The fourth proportional to 10,290.21, 15,435.27 and 3,364.71 is: 5,047.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.21 : 15,435.27 = 3,364.71 : x
  2. Step 2: Convert to fraction form
    10,290.21/15,435.27 = 3,364.71/x
  3. Step 3: Cross multiply
    10,290.21x = 15,435.27 × 3,364.71
  4. Step 4: Simplify right side
    10,290.21x = 51,935,207.32
  5. Step 5: Solve for x
    x = 51,935,207.32/10,290.21
  6. Step 6: Final answer
    x = 5,047.05

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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.