Home / 8,543.40-12,818.70-4,650.60

Finding the Fourth Proportional to 8,543.40, 12,818.70 and 4,650.60

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Solution

The fourth proportional to 8,543.40, 12,818.70 and 4,650.60 is: 6,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.40 : 12,818.70 = 4,650.60 : x
  2. Step 2: Convert to fraction form
    8,543.40/12,818.70 = 4,650.60/x
  3. Step 3: Cross multiply
    8,543.40x = 12,818.70 × 4,650.60
  4. Step 4: Simplify right side
    8,543.40x = 59,614,646.22
  5. Step 5: Solve for x
    x = 59,614,646.22/8,543.40
  6. Step 6: Final answer
    x = 6,977.86

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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.