Home / 10,866.12-16,291.84-4,290.52

Finding the Fourth Proportional to 10,866.12, 16,291.84 and 4,290.52

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Solution

The fourth proportional to 10,866.12, 16,291.84 and 4,290.52 is: 6,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.12 : 16,291.84 = 4,290.52 : x
  2. Step 2: Convert to fraction form
    10,866.12/16,291.84 = 4,290.52/x
  3. Step 3: Cross multiply
    10,866.12x = 16,291.84 × 4,290.52
  4. Step 4: Simplify right side
    10,866.12x = 69,900,465.36
  5. Step 5: Solve for x
    x = 69,900,465.36/10,866.12
  6. Step 6: Final answer
    x = 6,432.88

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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.