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Finding the Fourth Proportional to 8,520.95, 12,800.06 and 6,071.51

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Solution

The fourth proportional to 8,520.95, 12,800.06 and 6,071.51 is: 9,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.95 : 12,800.06 = 6,071.51 : x
  2. Step 2: Convert to fraction form
    8,520.95/12,800.06 = 6,071.51/x
  3. Step 3: Cross multiply
    8,520.95x = 12,800.06 × 6,071.51
  4. Step 4: Simplify right side
    8,520.95x = 77,715,692.29
  5. Step 5: Solve for x
    x = 77,715,692.29/8,520.95
  6. Step 6: Final answer
    x = 9,120.54

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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.