Home / 11,105.88-15,325.67-6,571.50

Finding the Fourth Proportional to 11,105.88, 15,325.67 and 6,571.50

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Solution

The fourth proportional to 11,105.88, 15,325.67 and 6,571.50 is: 9,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.88 : 15,325.67 = 6,571.50 : x
  2. Step 2: Convert to fraction form
    11,105.88/15,325.67 = 6,571.50/x
  3. Step 3: Cross multiply
    11,105.88x = 15,325.67 × 6,571.50
  4. Step 4: Simplify right side
    11,105.88x = 100,712,607.55
  5. Step 5: Solve for x
    x = 100,712,607.55/11,105.88
  6. Step 6: Final answer
    x = 9,068.40

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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.