Home / 8,713.46-12,021.30-5,353.58

Finding the Fourth Proportional to 8,713.46, 12,021.30 and 5,353.58

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Solution

The fourth proportional to 8,713.46, 12,021.30 and 5,353.58 is: 7,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.46 : 12,021.30 = 5,353.58 : x
  2. Step 2: Convert to fraction form
    8,713.46/12,021.30 = 5,353.58/x
  3. Step 3: Cross multiply
    8,713.46x = 12,021.30 × 5,353.58
  4. Step 4: Simplify right side
    8,713.46x = 64,356,991.25
  5. Step 5: Solve for x
    x = 64,356,991.25/8,713.46
  6. Step 6: Final answer
    x = 7,385.93

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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.