Home / 8,489.02-11,715.18-4,660.80

Finding the Fourth Proportional to 8,489.02, 11,715.18 and 4,660.80

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Solution

The fourth proportional to 8,489.02, 11,715.18 and 4,660.80 is: 6,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.02 : 11,715.18 = 4,660.80 : x
  2. Step 2: Convert to fraction form
    8,489.02/11,715.18 = 4,660.80/x
  3. Step 3: Cross multiply
    8,489.02x = 11,715.18 × 4,660.80
  4. Step 4: Simplify right side
    8,489.02x = 54,602,110.94
  5. Step 5: Solve for x
    x = 54,602,110.94/8,489.02
  6. Step 6: Final answer
    x = 6,432.09

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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.