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Finding the Fourth Proportional to 17,975.52, 26,978.40 and 9,218.88

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Solution

The fourth proportional to 17,975.52, 26,978.40 and 9,218.88 is: 13,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,975.52 : 26,978.40 = 9,218.88 : x
  2. Step 2: Convert to fraction form
    17,975.52/26,978.40 = 9,218.88/x
  3. Step 3: Cross multiply
    17,975.52x = 26,978.40 × 9,218.88
  4. Step 4: Simplify right side
    17,975.52x = 248,710,632.19
  5. Step 5: Solve for x
    x = 248,710,632.19/17,975.52
  6. Step 6: Final answer
    x = 13,836.07

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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.