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Finding the Fourth Proportional to 8,656.79, 11,950.35 and 5,071.25

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Solution

The fourth proportional to 8,656.79, 11,950.35 and 5,071.25 is: 7,000.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.79 : 11,950.35 = 5,071.25 : x
  2. Step 2: Convert to fraction form
    8,656.79/11,950.35 = 5,071.25/x
  3. Step 3: Cross multiply
    8,656.79x = 11,950.35 × 5,071.25
  4. Step 4: Simplify right side
    8,656.79x = 60,603,212.44
  5. Step 5: Solve for x
    x = 60,603,212.44/8,656.79
  6. Step 6: Final answer
    x = 7,000.66

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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.