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Finding the Fourth Proportional to 8,718.62, 13,077.62 and 2,875.08

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Solution

The fourth proportional to 8,718.62, 13,077.62 and 2,875.08 is: 4,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.62 : 13,077.62 = 2,875.08 : x
  2. Step 2: Convert to fraction form
    8,718.62/13,077.62 = 2,875.08/x
  3. Step 3: Cross multiply
    8,718.62x = 13,077.62 × 2,875.08
  4. Step 4: Simplify right side
    8,718.62x = 37,599,203.71
  5. Step 5: Solve for x
    x = 37,599,203.71/8,718.62
  6. Step 6: Final answer
    x = 4,312.52

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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.