Home / 12,456.40-18,683.52-4,133.68

Finding the Fourth Proportional to 12,456.40, 18,683.52 and 4,133.68

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Solution

The fourth proportional to 12,456.40, 18,683.52 and 4,133.68 is: 6,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.40 : 18,683.52 = 4,133.68 : x
  2. Step 2: Convert to fraction form
    12,456.40/18,683.52 = 4,133.68/x
  3. Step 3: Cross multiply
    12,456.40x = 18,683.52 × 4,133.68
  4. Step 4: Simplify right side
    12,456.40x = 77,231,692.95
  5. Step 5: Solve for x
    x = 77,231,692.95/12,456.40
  6. Step 6: Final answer
    x = 6,200.16

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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.