Home / 10,518.29-15,765.32-4,271.44

Finding the Fourth Proportional to 10,518.29, 15,765.32 and 4,271.44

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Solution

The fourth proportional to 10,518.29, 15,765.32 and 4,271.44 is: 6,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.29 : 15,765.32 = 4,271.44 : x
  2. Step 2: Convert to fraction form
    10,518.29/15,765.32 = 4,271.44/x
  3. Step 3: Cross multiply
    10,518.29x = 15,765.32 × 4,271.44
  4. Step 4: Simplify right side
    10,518.29x = 67,340,557.69
  5. Step 5: Solve for x
    x = 67,340,557.69/10,518.29
  6. Step 6: Final answer
    x = 6,402.24

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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.