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Finding the Fourth Proportional to 8,718.34, 12,034.98 and 5,889.56

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Solution

The fourth proportional to 8,718.34, 12,034.98 and 5,889.56 is: 8,130.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.34 : 12,034.98 = 5,889.56 : x
  2. Step 2: Convert to fraction form
    8,718.34/12,034.98 = 5,889.56/x
  3. Step 3: Cross multiply
    8,718.34x = 12,034.98 × 5,889.56
  4. Step 4: Simplify right side
    8,718.34x = 70,880,736.81
  5. Step 5: Solve for x
    x = 70,880,736.81/8,718.34
  6. Step 6: Final answer
    x = 8,130.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.