Home / 8,280.36-11,426.57-4,742.89

Finding the Fourth Proportional to 8,280.36, 11,426.57 and 4,742.89

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Solution

The fourth proportional to 8,280.36, 11,426.57 and 4,742.89 is: 6,545.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.36 : 11,426.57 = 4,742.89 : x
  2. Step 2: Convert to fraction form
    8,280.36/11,426.57 = 4,742.89/x
  3. Step 3: Cross multiply
    8,280.36x = 11,426.57 × 4,742.89
  4. Step 4: Simplify right side
    8,280.36x = 54,194,930.09
  5. Step 5: Solve for x
    x = 54,194,930.09/8,280.36
  6. Step 6: Final answer
    x = 6,545.00

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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.