Home / 12,548.59-18,822.86-3,783.50

Finding the Fourth Proportional to 12,548.59, 18,822.86 and 3,783.50

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Solution

The fourth proportional to 12,548.59, 18,822.86 and 3,783.50 is: 5,675.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.59 : 18,822.86 = 3,783.50 : x
  2. Step 2: Convert to fraction form
    12,548.59/18,822.86 = 3,783.50/x
  3. Step 3: Cross multiply
    12,548.59x = 18,822.86 × 3,783.50
  4. Step 4: Simplify right side
    12,548.59x = 71,216,290.81
  5. Step 5: Solve for x
    x = 71,216,290.81/12,548.59
  6. Step 6: Final answer
    x = 5,675.24

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Double scale
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Similar ratio
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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.