Home / 13,572.83-18,731.54-8,541.36

Finding the Fourth Proportional to 13,572.83, 18,731.54 and 8,541.36

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Solution

The fourth proportional to 13,572.83, 18,731.54 and 8,541.36 is: 11,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.83 : 18,731.54 = 8,541.36 : x
  2. Step 2: Convert to fraction form
    13,572.83/18,731.54 = 8,541.36/x
  3. Step 3: Cross multiply
    13,572.83x = 18,731.54 × 8,541.36
  4. Step 4: Simplify right side
    13,572.83x = 159,992,805.14
  5. Step 5: Solve for x
    x = 159,992,805.14/13,572.83
  6. Step 6: Final answer
    x = 11,787.73

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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.