Home / 12,588.91-18,871.57-4,263.10

Finding the Fourth Proportional to 12,588.91, 18,871.57 and 4,263.10

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Solution

The fourth proportional to 12,588.91, 18,871.57 and 4,263.10 is: 6,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.91 : 18,871.57 = 4,263.10 : x
  2. Step 2: Convert to fraction form
    12,588.91/18,871.57 = 4,263.10/x
  3. Step 3: Cross multiply
    12,588.91x = 18,871.57 × 4,263.10
  4. Step 4: Simplify right side
    12,588.91x = 80,451,430.39
  5. Step 5: Solve for x
    x = 80,451,430.39/12,588.91
  6. Step 6: Final answer
    x = 6,390.66

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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.