Home / 7,457.90-11,211.15-5,281.70

Finding the Fourth Proportional to 7,457.90, 11,211.15 and 5,281.70

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Solution

The fourth proportional to 7,457.90, 11,211.15 and 5,281.70 is: 7,939.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.90 : 11,211.15 = 5,281.70 : x
  2. Step 2: Convert to fraction form
    7,457.90/11,211.15 = 5,281.70/x
  3. Step 3: Cross multiply
    7,457.90x = 11,211.15 × 5,281.70
  4. Step 4: Simplify right side
    7,457.90x = 59,213,930.96
  5. Step 5: Solve for x
    x = 59,213,930.96/7,457.90
  6. Step 6: Final answer
    x = 7,939.76

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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.