Home / 13,962.72-20,946-4,731.36

Finding the Fourth Proportional to 13,962.72, 20,946 and 4,731.36

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Solution

The fourth proportional to 13,962.72, 20,946 and 4,731.36 is: 7,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.72 : 20,946 = 4,731.36 : x
  2. Step 2: Convert to fraction form
    13,962.72/20,946 = 4,731.36/x
  3. Step 3: Cross multiply
    13,962.72x = 20,946 × 4,731.36
  4. Step 4: Simplify right side
    13,962.72x = 99,103,066.56
  5. Step 5: Solve for x
    x = 99,103,066.56/13,962.72
  6. Step 6: Final answer
    x = 7,097.69

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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.