Home / 8,865.08-13,271.84-5,156

Finding the Fourth Proportional to 8,865.08, 13,271.84 and 5,156

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Solution

The fourth proportional to 8,865.08, 13,271.84 and 5,156 is: 7,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.08 : 13,271.84 = 5,156 : x
  2. Step 2: Convert to fraction form
    8,865.08/13,271.84 = 5,156/x
  3. Step 3: Cross multiply
    8,865.08x = 13,271.84 × 5,156
  4. Step 4: Simplify right side
    8,865.08x = 68,429,607.04
  5. Step 5: Solve for x
    x = 68,429,607.04/8,865.08
  6. Step 6: Final answer
    x = 7,719.01

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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.