Home / 10,815.76-16,223.64-2,607.76

Finding the Fourth Proportional to 10,815.76, 16,223.64 and 2,607.76

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Solution

The fourth proportional to 10,815.76, 16,223.64 and 2,607.76 is: 3,911.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.76 : 16,223.64 = 2,607.76 : x
  2. Step 2: Convert to fraction form
    10,815.76/16,223.64 = 2,607.76/x
  3. Step 3: Cross multiply
    10,815.76x = 16,223.64 × 2,607.76
  4. Step 4: Simplify right side
    10,815.76x = 42,307,359.45
  5. Step 5: Solve for x
    x = 42,307,359.45/10,815.76
  6. Step 6: Final answer
    x = 3,911.64

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1.5x scale

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.