Home / 8,280.09-11,427.14-4,742.62

Finding the Fourth Proportional to 8,280.09, 11,427.14 and 4,742.62

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Solution

The fourth proportional to 8,280.09, 11,427.14 and 4,742.62 is: 6,545.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.09 : 11,427.14 = 4,742.62 : x
  2. Step 2: Convert to fraction form
    8,280.09/11,427.14 = 4,742.62/x
  3. Step 3: Cross multiply
    8,280.09x = 11,427.14 × 4,742.62
  4. Step 4: Simplify right side
    8,280.09x = 54,194,566.00
  5. Step 5: Solve for x
    x = 54,194,566.00/8,280.09
  6. Step 6: Final answer
    x = 6,545.17

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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.