Home / 13,948.76-20,921.60-4,088.16

Finding the Fourth Proportional to 13,948.76, 20,921.60 and 4,088.16

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Solution

The fourth proportional to 13,948.76, 20,921.60 and 4,088.16 is: 6,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.76 : 20,921.60 = 4,088.16 : x
  2. Step 2: Convert to fraction form
    13,948.76/20,921.60 = 4,088.16/x
  3. Step 3: Cross multiply
    13,948.76x = 20,921.60 × 4,088.16
  4. Step 4: Simplify right side
    13,948.76x = 85,530,848.26
  5. Step 5: Solve for x
    x = 85,530,848.26/13,948.76
  6. Step 6: Final answer
    x = 6,131.79

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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.