Home / 13,587.50-20,376.09-5,690.54

Finding the Fourth Proportional to 13,587.50, 20,376.09 and 5,690.54

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Solution

The fourth proportional to 13,587.50, 20,376.09 and 5,690.54 is: 8,533.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.50 : 20,376.09 = 5,690.54 : x
  2. Step 2: Convert to fraction form
    13,587.50/20,376.09 = 5,690.54/x
  3. Step 3: Cross multiply
    13,587.50x = 20,376.09 × 5,690.54
  4. Step 4: Simplify right side
    13,587.50x = 115,951,006.13
  5. Step 5: Solve for x
    x = 115,951,006.13/13,587.50
  6. Step 6: Final answer
    x = 8,533.65

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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.