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Finding the Fourth Proportional to 12,482.64, 17,130.96 and 11,301.12

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Solution

The fourth proportional to 12,482.64, 17,130.96 and 11,301.12 is: 15,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.64 : 17,130.96 = 11,301.12 : x
  2. Step 2: Convert to fraction form
    12,482.64/17,130.96 = 11,301.12/x
  3. Step 3: Cross multiply
    12,482.64x = 17,130.96 × 11,301.12
  4. Step 4: Simplify right side
    12,482.64x = 193,599,034.68
  5. Step 5: Solve for x
    x = 193,599,034.68/12,482.64
  6. Step 6: Final answer
    x = 15,509.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.