Home / 8,585.43-12,878.18-3,038.78

Finding the Fourth Proportional to 8,585.43, 12,878.18 and 3,038.78

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Solution

The fourth proportional to 8,585.43, 12,878.18 and 3,038.78 is: 4,558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.43 : 12,878.18 = 3,038.78 : x
  2. Step 2: Convert to fraction form
    8,585.43/12,878.18 = 3,038.78/x
  3. Step 3: Cross multiply
    8,585.43x = 12,878.18 × 3,038.78
  4. Step 4: Simplify right side
    8,585.43x = 39,133,876.24
  5. Step 5: Solve for x
    x = 39,133,876.24/8,585.43
  6. Step 6: Final answer
    x = 4,558.17

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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.