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Finding the Fourth Proportional to 12,494.88, 18,748.32 and 7,301.16

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Solution

The fourth proportional to 12,494.88, 18,748.32 and 7,301.16 is: 10,955.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.88 : 18,748.32 = 7,301.16 : x
  2. Step 2: Convert to fraction form
    12,494.88/18,748.32 = 7,301.16/x
  3. Step 3: Cross multiply
    12,494.88x = 18,748.32 × 7,301.16
  4. Step 4: Simplify right side
    12,494.88x = 136,884,484.05
  5. Step 5: Solve for x
    x = 136,884,484.05/12,494.88
  6. Step 6: Final answer
    x = 10,955.25

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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.