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Finding the Fourth Proportional to 17,398.80, 26,072.28 and 9,992.16

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Solution

The fourth proportional to 17,398.80, 26,072.28 and 9,992.16 is: 14,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,398.80 : 26,072.28 = 9,992.16 : x
  2. Step 2: Convert to fraction form
    17,398.80/26,072.28 = 9,992.16/x
  3. Step 3: Cross multiply
    17,398.80x = 26,072.28 × 9,992.16
  4. Step 4: Simplify right side
    17,398.80x = 260,518,393.32
  5. Step 5: Solve for x
    x = 260,518,393.32/17,398.80
  6. Step 6: Final answer
    x = 14,973.35

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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.