Home / 8,391.02-12,588.60-4,176.28

Finding the Fourth Proportional to 8,391.02, 12,588.60 and 4,176.28

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Solution

The fourth proportional to 8,391.02, 12,588.60 and 4,176.28 is: 6,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.02 : 12,588.60 = 4,176.28 : x
  2. Step 2: Convert to fraction form
    8,391.02/12,588.60 = 4,176.28/x
  3. Step 3: Cross multiply
    8,391.02x = 12,588.60 × 4,176.28
  4. Step 4: Simplify right side
    8,391.02x = 52,573,518.41
  5. Step 5: Solve for x
    x = 52,573,518.41/8,391.02
  6. Step 6: Final answer
    x = 6,265.45

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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.