Home / 8,070.85-11,137.21-5,417.83

Finding the Fourth Proportional to 8,070.85, 11,137.21 and 5,417.83

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Solution

The fourth proportional to 8,070.85, 11,137.21 and 5,417.83 is: 7,476.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,070.85 : 11,137.21 = 5,417.83 : x
  2. Step 2: Convert to fraction form
    8,070.85/11,137.21 = 5,417.83/x
  3. Step 3: Cross multiply
    8,070.85x = 11,137.21 × 5,417.83
  4. Step 4: Simplify right side
    8,070.85x = 60,339,510.45
  5. Step 5: Solve for x
    x = 60,339,510.45/8,070.85
  6. Step 6: Final answer
    x = 7,476.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.