Home / 7,470.28-11,211.90-4,353.40

Finding the Fourth Proportional to 7,470.28, 11,211.90 and 4,353.40

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Solution

The fourth proportional to 7,470.28, 11,211.90 and 4,353.40 is: 6,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.28 : 11,211.90 = 4,353.40 : x
  2. Step 2: Convert to fraction form
    7,470.28/11,211.90 = 4,353.40/x
  3. Step 3: Cross multiply
    7,470.28x = 11,211.90 × 4,353.40
  4. Step 4: Simplify right side
    7,470.28x = 48,809,885.46
  5. Step 5: Solve for x
    x = 48,809,885.46/7,470.28
  6. Step 6: Final answer
    x = 6,533.88

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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.