Home / 8,078.02-11,146.02-4,720.19

Finding the Fourth Proportional to 8,078.02, 11,146.02 and 4,720.19

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Solution

The fourth proportional to 8,078.02, 11,146.02 and 4,720.19 is: 6,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.02 : 11,146.02 = 4,720.19 : x
  2. Step 2: Convert to fraction form
    8,078.02/11,146.02 = 4,720.19/x
  3. Step 3: Cross multiply
    8,078.02x = 11,146.02 × 4,720.19
  4. Step 4: Simplify right side
    8,078.02x = 52,611,276.41
  5. Step 5: Solve for x
    x = 52,611,276.41/8,078.02
  6. Step 6: Final answer
    x = 6,512.89

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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.