Home / 8,812.74-13,221.14-5,118.06

Finding the Fourth Proportional to 8,812.74, 13,221.14 and 5,118.06

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Solution

The fourth proportional to 8,812.74, 13,221.14 and 5,118.06 is: 7,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.74 : 13,221.14 = 5,118.06 : x
  2. Step 2: Convert to fraction form
    8,812.74/13,221.14 = 5,118.06/x
  3. Step 3: Cross multiply
    8,812.74x = 13,221.14 × 5,118.06
  4. Step 4: Simplify right side
    8,812.74x = 67,666,587.79
  5. Step 5: Solve for x
    x = 67,666,587.79/8,812.74
  6. Step 6: Final answer
    x = 7,678.27

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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.