Home / 8,426.90-12,648.45-4,271.60

Finding the Fourth Proportional to 8,426.90, 12,648.45 and 4,271.60

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Solution

The fourth proportional to 8,426.90, 12,648.45 and 4,271.60 is: 6,411.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.90 : 12,648.45 = 4,271.60 : x
  2. Step 2: Convert to fraction form
    8,426.90/12,648.45 = 4,271.60/x
  3. Step 3: Cross multiply
    8,426.90x = 12,648.45 × 4,271.60
  4. Step 4: Simplify right side
    8,426.90x = 54,029,119.02
  5. Step 5: Solve for x
    x = 54,029,119.02/8,426.90
  6. Step 6: Final answer
    x = 6,411.51

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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.