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Finding the Fourth Proportional to 9,000.67, 13,509.66 and 4,386.91

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Solution

The fourth proportional to 9,000.67, 13,509.66 and 4,386.91 is: 6,584.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.67 : 13,509.66 = 4,386.91 : x
  2. Step 2: Convert to fraction form
    9,000.67/13,509.66 = 4,386.91/x
  3. Step 3: Cross multiply
    9,000.67x = 13,509.66 × 4,386.91
  4. Step 4: Simplify right side
    9,000.67x = 59,265,662.55
  5. Step 5: Solve for x
    x = 59,265,662.55/9,000.67
  6. Step 6: Final answer
    x = 6,584.58

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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.