Home / 8,156.40-12,217.01-5,509.35

Finding the Fourth Proportional to 8,156.40, 12,217.01 and 5,509.35

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Solution

The fourth proportional to 8,156.40, 12,217.01 and 5,509.35 is: 8,252.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.40 : 12,217.01 = 5,509.35 : x
  2. Step 2: Convert to fraction form
    8,156.40/12,217.01 = 5,509.35/x
  3. Step 3: Cross multiply
    8,156.40x = 12,217.01 × 5,509.35
  4. Step 4: Simplify right side
    8,156.40x = 67,307,756.50
  5. Step 5: Solve for x
    x = 67,307,756.50/8,156.40
  6. Step 6: Final answer
    x = 8,252.14

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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.