Home / 12,302.28-18,406.85-7,541.51

Finding the Fourth Proportional to 12,302.28, 18,406.85 and 7,541.51

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Solution

The fourth proportional to 12,302.28, 18,406.85 and 7,541.51 is: 11,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302.28 : 18,406.85 = 7,541.51 : x
  2. Step 2: Convert to fraction form
    12,302.28/18,406.85 = 7,541.51/x
  3. Step 3: Cross multiply
    12,302.28x = 18,406.85 × 7,541.51
  4. Step 4: Simplify right side
    12,302.28x = 138,815,313.60
  5. Step 5: Solve for x
    x = 138,815,313.60/12,302.28
  6. Step 6: Final answer
    x = 11,283.71

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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.