Home / 13,243.65-18,277.98-8,541.60

Finding the Fourth Proportional to 13,243.65, 18,277.98 and 8,541.60

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Solution

The fourth proportional to 13,243.65, 18,277.98 and 8,541.60 is: 11,788.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.65 : 18,277.98 = 8,541.60 : x
  2. Step 2: Convert to fraction form
    13,243.65/18,277.98 = 8,541.60/x
  3. Step 3: Cross multiply
    13,243.65x = 18,277.98 × 8,541.60
  4. Step 4: Simplify right side
    13,243.65x = 156,123,102.58
  5. Step 5: Solve for x
    x = 156,123,102.58/13,243.65
  6. Step 6: Final answer
    x = 11,788.53

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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.