Home / 13,572.58-18,731.19-8,541.11

Finding the Fourth Proportional to 13,572.58, 18,731.19 and 8,541.11

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Solution

The fourth proportional to 13,572.58, 18,731.19 and 8,541.11 is: 11,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.58 : 18,731.19 = 8,541.11 : x
  2. Step 2: Convert to fraction form
    13,572.58/18,731.19 = 8,541.11/x
  3. Step 3: Cross multiply
    13,572.58x = 18,731.19 × 8,541.11
  4. Step 4: Simplify right side
    13,572.58x = 159,985,166.54
  5. Step 5: Solve for x
    x = 159,985,166.54/13,572.58
  6. Step 6: Final answer
    x = 11,787.38

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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.