Home / 14,365.60-21,548.40-5,129.76

Finding the Fourth Proportional to 14,365.60, 21,548.40 and 5,129.76

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Solution

The fourth proportional to 14,365.60, 21,548.40 and 5,129.76 is: 7,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,365.60 : 21,548.40 = 5,129.76 : x
  2. Step 2: Convert to fraction form
    14,365.60/21,548.40 = 5,129.76/x
  3. Step 3: Cross multiply
    14,365.60x = 21,548.40 × 5,129.76
  4. Step 4: Simplify right side
    14,365.60x = 110,538,120.38
  5. Step 5: Solve for x
    x = 110,538,120.38/14,365.60
  6. Step 6: Final answer
    x = 7,694.64

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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.