Home / 17,988.82-26,971.56-8,628.64

Finding the Fourth Proportional to 17,988.82, 26,971.56 and 8,628.64

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Solution

The fourth proportional to 17,988.82, 26,971.56 and 8,628.64 is: 12,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.82 : 26,971.56 = 8,628.64 : x
  2. Step 2: Convert to fraction form
    17,988.82/26,971.56 = 8,628.64/x
  3. Step 3: Cross multiply
    17,988.82x = 26,971.56 × 8,628.64
  4. Step 4: Simplify right side
    17,988.82x = 232,727,881.48
  5. Step 5: Solve for x
    x = 232,727,881.48/17,988.82
  6. Step 6: Final answer
    x = 12,937.36

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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.