Home / 8,585.91-11,847.90-5,228.35

Finding the Fourth Proportional to 8,585.91, 11,847.90 and 5,228.35

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Solution

The fourth proportional to 8,585.91, 11,847.90 and 5,228.35 is: 7,214.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.91 : 11,847.90 = 5,228.35 : x
  2. Step 2: Convert to fraction form
    8,585.91/11,847.90 = 5,228.35/x
  3. Step 3: Cross multiply
    8,585.91x = 11,847.90 × 5,228.35
  4. Step 4: Simplify right side
    8,585.91x = 61,944,938.35
  5. Step 5: Solve for x
    x = 61,944,938.35/8,585.91
  6. Step 6: Final answer
    x = 7,214.72

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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.