Home / 8,864.37-12,228.15-5,276.78

Finding the Fourth Proportional to 8,864.37, 12,228.15 and 5,276.78

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Solution

The fourth proportional to 8,864.37, 12,228.15 and 5,276.78 is: 7,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.37 : 12,228.15 = 5,276.78 : x
  2. Step 2: Convert to fraction form
    8,864.37/12,228.15 = 5,276.78/x
  3. Step 3: Cross multiply
    8,864.37x = 12,228.15 × 5,276.78
  4. Step 4: Simplify right side
    8,864.37x = 64,525,257.36
  5. Step 5: Solve for x
    x = 64,525,257.36/8,864.37
  6. Step 6: Final answer
    x = 7,279.17

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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.