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Finding the Fourth Proportional to 8,632.41, 12,938.81 and 7,590.39

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Solution

The fourth proportional to 8,632.41, 12,938.81 and 7,590.39 is: 11,376.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.41 : 12,938.81 = 7,590.39 : x
  2. Step 2: Convert to fraction form
    8,632.41/12,938.81 = 7,590.39/x
  3. Step 3: Cross multiply
    8,632.41x = 12,938.81 × 7,590.39
  4. Step 4: Simplify right side
    8,632.41x = 98,210,614.04
  5. Step 5: Solve for x
    x = 98,210,614.04/8,632.41
  6. Step 6: Final answer
    x = 11,376.96

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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.