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Finding the Fourth Proportional to 8,750.63, 13,124.10 and 3,206.57

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Solution

The fourth proportional to 8,750.63, 13,124.10 and 3,206.57 is: 4,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.63 : 13,124.10 = 3,206.57 : x
  2. Step 2: Convert to fraction form
    8,750.63/13,124.10 = 3,206.57/x
  3. Step 3: Cross multiply
    8,750.63x = 13,124.10 × 3,206.57
  4. Step 4: Simplify right side
    8,750.63x = 42,083,345.34
  5. Step 5: Solve for x
    x = 42,083,345.34/8,750.63
  6. Step 6: Final answer
    x = 4,809.18

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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.