Home / 12,637.04-18,960.48-5,239.64

Finding the Fourth Proportional to 12,637.04, 18,960.48 and 5,239.64

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Solution

The fourth proportional to 12,637.04, 18,960.48 and 5,239.64 is: 7,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.04 : 18,960.48 = 5,239.64 : x
  2. Step 2: Convert to fraction form
    12,637.04/18,960.48 = 5,239.64/x
  3. Step 3: Cross multiply
    12,637.04x = 18,960.48 × 5,239.64
  4. Step 4: Simplify right side
    12,637.04x = 99,346,089.43
  5. Step 5: Solve for x
    x = 99,346,089.43/12,637.04
  6. Step 6: Final answer
    x = 7,861.50

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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.