Home / 10,488.76-15,735.30-3,913.36

Finding the Fourth Proportional to 10,488.76, 15,735.30 and 3,913.36

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Solution

The fourth proportional to 10,488.76, 15,735.30 and 3,913.36 is: 5,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.76 : 15,735.30 = 3,913.36 : x
  2. Step 2: Convert to fraction form
    10,488.76/15,735.30 = 3,913.36/x
  3. Step 3: Cross multiply
    10,488.76x = 15,735.30 × 3,913.36
  4. Step 4: Simplify right side
    10,488.76x = 61,577,893.61
  5. Step 5: Solve for x
    x = 61,577,893.61/10,488.76
  6. Step 6: Final answer
    x = 5,870.85

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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.