Home / 10,281.76-15,421.48-2,886.50

Finding the Fourth Proportional to 10,281.76, 15,421.48 and 2,886.50

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Solution

The fourth proportional to 10,281.76, 15,421.48 and 2,886.50 is: 4,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.76 : 15,421.48 = 2,886.50 : x
  2. Step 2: Convert to fraction form
    10,281.76/15,421.48 = 2,886.50/x
  3. Step 3: Cross multiply
    10,281.76x = 15,421.48 × 2,886.50
  4. Step 4: Simplify right side
    10,281.76x = 44,514,087.59
  5. Step 5: Solve for x
    x = 44,514,087.59/10,281.76
  6. Step 6: Final answer
    x = 4,329.43

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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.