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Finding the Fourth Proportional to 6,887.42, 9,503.98 and 3,862.67

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Solution

The fourth proportional to 6,887.42, 9,503.98 and 3,862.67 is: 5,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.42 : 9,503.98 = 3,862.67 : x
  2. Step 2: Convert to fraction form
    6,887.42/9,503.98 = 3,862.67/x
  3. Step 3: Cross multiply
    6,887.42x = 9,503.98 × 3,862.67
  4. Step 4: Simplify right side
    6,887.42x = 36,710,717.10
  5. Step 5: Solve for x
    x = 36,710,717.10/6,887.42
  6. Step 6: Final answer
    x = 5,330.11

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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.