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Finding the Fourth Proportional to 8,814.65, 13,225.29 and 5,307.12

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Solution

The fourth proportional to 8,814.65, 13,225.29 and 5,307.12 is: 7,962.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,814.65 : 13,225.29 = 5,307.12 : x
  2. Step 2: Convert to fraction form
    8,814.65/13,225.29 = 5,307.12/x
  3. Step 3: Cross multiply
    8,814.65x = 13,225.29 × 5,307.12
  4. Step 4: Simplify right side
    8,814.65x = 70,188,201.06
  5. Step 5: Solve for x
    x = 70,188,201.06/8,814.65
  6. Step 6: Final answer
    x = 7,962.68

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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.