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Finding the Fourth Proportional to 8,630.45, 12,926.08 and 7,632.93

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Solution

The fourth proportional to 8,630.45, 12,926.08 and 7,632.93 is: 11,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.45 : 12,926.08 = 7,632.93 : x
  2. Step 2: Convert to fraction form
    8,630.45/12,926.08 = 7,632.93/x
  3. Step 3: Cross multiply
    8,630.45x = 12,926.08 × 7,632.93
  4. Step 4: Simplify right side
    8,630.45x = 98,663,921.83
  5. Step 5: Solve for x
    x = 98,663,921.83/8,630.45
  6. Step 6: Final answer
    x = 11,432.07

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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.