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Finding the Fourth Proportional to 10,360.77, 15,536.03 and 8,381.49

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Solution

The fourth proportional to 10,360.77, 15,536.03 and 8,381.49 is: 12,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.77 : 15,536.03 = 8,381.49 : x
  2. Step 2: Convert to fraction form
    10,360.77/15,536.03 = 8,381.49/x
  3. Step 3: Cross multiply
    10,360.77x = 15,536.03 × 8,381.49
  4. Step 4: Simplify right side
    10,360.77x = 130,215,038.18
  5. Step 5: Solve for x
    x = 130,215,038.18/10,360.77
  6. Step 6: Final answer
    x = 12,568.09

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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.