Home / 8,818.74-12,169.40-5,282.28

Finding the Fourth Proportional to 8,818.74, 12,169.40 and 5,282.28

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Solution

The fourth proportional to 8,818.74, 12,169.40 and 5,282.28 is: 7,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.74 : 12,169.40 = 5,282.28 : x
  2. Step 2: Convert to fraction form
    8,818.74/12,169.40 = 5,282.28/x
  3. Step 3: Cross multiply
    8,818.74x = 12,169.40 × 5,282.28
  4. Step 4: Simplify right side
    8,818.74x = 64,282,151.82
  5. Step 5: Solve for x
    x = 64,282,151.82/8,818.74
  6. Step 6: Final answer
    x = 7,289.27

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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.