Home / 8,618.30-11,892.93-5,266.72

Finding the Fourth Proportional to 8,618.30, 11,892.93 and 5,266.72

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Solution

The fourth proportional to 8,618.30, 11,892.93 and 5,266.72 is: 7,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.30 : 11,892.93 = 5,266.72 : x
  2. Step 2: Convert to fraction form
    8,618.30/11,892.93 = 5,266.72/x
  3. Step 3: Cross multiply
    8,618.30x = 11,892.93 × 5,266.72
  4. Step 4: Simplify right side
    8,618.30x = 62,636,727.41
  5. Step 5: Solve for x
    x = 62,636,727.41/8,618.30
  6. Step 6: Final answer
    x = 7,267.88

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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.