Home / 9,267.30-12,788.91-5,289.66

Finding the Fourth Proportional to 9,267.30, 12,788.91 and 5,289.66

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Solution

The fourth proportional to 9,267.30, 12,788.91 and 5,289.66 is: 7,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.30 : 12,788.91 = 5,289.66 : x
  2. Step 2: Convert to fraction form
    9,267.30/12,788.91 = 5,289.66/x
  3. Step 3: Cross multiply
    9,267.30x = 12,788.91 × 5,289.66
  4. Step 4: Simplify right side
    9,267.30x = 67,648,985.67
  5. Step 5: Solve for x
    x = 67,648,985.67/9,267.30
  6. Step 6: Final answer
    x = 7,299.75

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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.