Home / 8,526.80-12,785.34-4,143.08

Finding the Fourth Proportional to 8,526.80, 12,785.34 and 4,143.08

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Solution

The fourth proportional to 8,526.80, 12,785.34 and 4,143.08 is: 6,212.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526.80 : 12,785.34 = 4,143.08 : x
  2. Step 2: Convert to fraction form
    8,526.80/12,785.34 = 4,143.08/x
  3. Step 3: Cross multiply
    8,526.80x = 12,785.34 × 4,143.08
  4. Step 4: Simplify right side
    8,526.80x = 52,970,686.45
  5. Step 5: Solve for x
    x = 52,970,686.45/8,526.80
  6. Step 6: Final answer
    x = 6,212.26

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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.