Home / 7,288.60-10,911.30-4,372.60

Finding the Fourth Proportional to 7,288.60, 10,911.30 and 4,372.60

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Solution

The fourth proportional to 7,288.60, 10,911.30 and 4,372.60 is: 6,545.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.60 : 10,911.30 = 4,372.60 : x
  2. Step 2: Convert to fraction form
    7,288.60/10,911.30 = 4,372.60/x
  3. Step 3: Cross multiply
    7,288.60x = 10,911.30 × 4,372.60
  4. Step 4: Simplify right side
    7,288.60x = 47,710,750.38
  5. Step 5: Solve for x
    x = 47,710,750.38/7,288.60
  6. Step 6: Final answer
    x = 6,545.94

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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.