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Finding the Fourth Proportional to 8,697.66, 13,031.91 and 4,790.22

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Solution

The fourth proportional to 8,697.66, 13,031.91 and 4,790.22 is: 7,177.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.66 : 13,031.91 = 4,790.22 : x
  2. Step 2: Convert to fraction form
    8,697.66/13,031.91 = 4,790.22/x
  3. Step 3: Cross multiply
    8,697.66x = 13,031.91 × 4,790.22
  4. Step 4: Simplify right side
    8,697.66x = 62,425,715.92
  5. Step 5: Solve for x
    x = 62,425,715.92/8,697.66
  6. Step 6: Final answer
    x = 7,177.30

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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.