Home / 14,254.60-21,366.78-5,485.72

Finding the Fourth Proportional to 14,254.60, 21,366.78 and 5,485.72

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Solution

The fourth proportional to 14,254.60, 21,366.78 and 5,485.72 is: 8,222.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,254.60 : 21,366.78 = 5,485.72 : x
  2. Step 2: Convert to fraction form
    14,254.60/21,366.78 = 5,485.72/x
  3. Step 3: Cross multiply
    14,254.60x = 21,366.78 × 5,485.72
  4. Step 4: Simplify right side
    14,254.60x = 117,212,172.38
  5. Step 5: Solve for x
    x = 117,212,172.38/14,254.60
  6. Step 6: Final answer
    x = 8,222.76

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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.