Home / 8,701.02-12,000.15-7,126.38

Finding the Fourth Proportional to 8,701.02, 12,000.15 and 7,126.38

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Solution

The fourth proportional to 8,701.02, 12,000.15 and 7,126.38 is: 9,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.02 : 12,000.15 = 7,126.38 : x
  2. Step 2: Convert to fraction form
    8,701.02/12,000.15 = 7,126.38/x
  3. Step 3: Cross multiply
    8,701.02x = 12,000.15 × 7,126.38
  4. Step 4: Simplify right side
    8,701.02x = 85,517,628.96
  5. Step 5: Solve for x
    x = 85,517,628.96/8,701.02
  6. Step 6: Final answer
    x = 9,828.46

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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.