Home / 12,356.60-18,534.96-3,122.60

Finding the Fourth Proportional to 12,356.60, 18,534.96 and 3,122.60

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Solution

The fourth proportional to 12,356.60, 18,534.96 and 3,122.60 is: 4,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.60 : 18,534.96 = 3,122.60 : x
  2. Step 2: Convert to fraction form
    12,356.60/18,534.96 = 3,122.60/x
  3. Step 3: Cross multiply
    12,356.60x = 18,534.96 × 3,122.60
  4. Step 4: Simplify right side
    12,356.60x = 57,877,266.10
  5. Step 5: Solve for x
    x = 57,877,266.10/12,356.60
  6. Step 6: Final answer
    x = 4,683.92

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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.