Home / 8,807.05-13,210.46-2,143.58

Finding the Fourth Proportional to 8,807.05, 13,210.46 and 2,143.58

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Solution

The fourth proportional to 8,807.05, 13,210.46 and 2,143.58 is: 3,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.05 : 13,210.46 = 2,143.58 : x
  2. Step 2: Convert to fraction form
    8,807.05/13,210.46 = 2,143.58/x
  3. Step 3: Cross multiply
    8,807.05x = 13,210.46 × 2,143.58
  4. Step 4: Simplify right side
    8,807.05x = 28,317,677.85
  5. Step 5: Solve for x
    x = 28,317,677.85/8,807.05
  6. Step 6: Final answer
    x = 3,215.34

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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.