Home / 18,946.60-28,428.08-10,171.26

Finding the Fourth Proportional to 18,946.60, 28,428.08 and 10,171.26

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Solution

The fourth proportional to 18,946.60, 28,428.08 and 10,171.26 is: 15,261.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.60 : 28,428.08 = 10,171.26 : x
  2. Step 2: Convert to fraction form
    18,946.60/28,428.08 = 10,171.26/x
  3. Step 3: Cross multiply
    18,946.60x = 28,428.08 × 10,171.26
  4. Step 4: Simplify right side
    18,946.60x = 289,149,392.98
  5. Step 5: Solve for x
    x = 289,149,392.98/18,946.60
  6. Step 6: Final answer
    x = 15,261.28

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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.