Home / 8,793.02-12,130.76-6,431.06

Finding the Fourth Proportional to 8,793.02, 12,130.76 and 6,431.06

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Solution

The fourth proportional to 8,793.02, 12,130.76 and 6,431.06 is: 8,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.02 : 12,130.76 = 6,431.06 : x
  2. Step 2: Convert to fraction form
    8,793.02/12,130.76 = 6,431.06/x
  3. Step 3: Cross multiply
    8,793.02x = 12,130.76 × 6,431.06
  4. Step 4: Simplify right side
    8,793.02x = 78,013,691.81
  5. Step 5: Solve for x
    x = 78,013,691.81/8,793.02
  6. Step 6: Final answer
    x = 8,872.23

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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.