Home / 9,267.40-12,789.93-5,289.11

Finding the Fourth Proportional to 9,267.40, 12,789.93 and 5,289.11

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Solution

The fourth proportional to 9,267.40, 12,789.93 and 5,289.11 is: 7,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,267.40 : 12,789.93 = 5,289.11 : x
  2. Step 2: Convert to fraction form
    9,267.40/12,789.93 = 5,289.11/x
  3. Step 3: Cross multiply
    9,267.40x = 12,789.93 × 5,289.11
  4. Step 4: Simplify right side
    9,267.40x = 67,647,422.45
  5. Step 5: Solve for x
    x = 67,647,422.45/9,267.40
  6. Step 6: Final answer
    x = 7,299.50

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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.