Home / 13,541.05-18,684.22-7,572.76

Finding the Fourth Proportional to 13,541.05, 18,684.22 and 7,572.76

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Solution

The fourth proportional to 13,541.05, 18,684.22 and 7,572.76 is: 10,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.05 : 18,684.22 = 7,572.76 : x
  2. Step 2: Convert to fraction form
    13,541.05/18,684.22 = 7,572.76/x
  3. Step 3: Cross multiply
    13,541.05x = 18,684.22 × 7,572.76
  4. Step 4: Simplify right side
    13,541.05x = 141,491,113.85
  5. Step 5: Solve for x
    x = 141,491,113.85/13,541.05
  6. Step 6: Final answer
    x = 10,449.05

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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.