Home / 8,123.20-11,202.98-5,289.50

Finding the Fourth Proportional to 8,123.20, 11,202.98 and 5,289.50

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Solution

The fourth proportional to 8,123.20, 11,202.98 and 5,289.50 is: 7,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.20 : 11,202.98 = 5,289.50 : x
  2. Step 2: Convert to fraction form
    8,123.20/11,202.98 = 5,289.50/x
  3. Step 3: Cross multiply
    8,123.20x = 11,202.98 × 5,289.50
  4. Step 4: Simplify right side
    8,123.20x = 59,258,162.71
  5. Step 5: Solve for x
    x = 59,258,162.71/8,123.20
  6. Step 6: Final answer
    x = 7,294.93

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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.