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Finding the Fourth Proportional to 8,916.88, 13,350.35 and 6,718.72

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Solution

The fourth proportional to 8,916.88, 13,350.35 and 6,718.72 is: 10,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.88 : 13,350.35 = 6,718.72 : x
  2. Step 2: Convert to fraction form
    8,916.88/13,350.35 = 6,718.72/x
  3. Step 3: Cross multiply
    8,916.88x = 13,350.35 × 6,718.72
  4. Step 4: Simplify right side
    8,916.88x = 89,697,263.55
  5. Step 5: Solve for x
    x = 89,697,263.55/8,916.88
  6. Step 6: Final answer
    x = 10,059.27

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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.