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Finding the Fourth Proportional to 18,653.20, 27,973.28 and 5,502.08

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Solution

The fourth proportional to 18,653.20, 27,973.28 and 5,502.08 is: 8,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.20 : 27,973.28 = 5,502.08 : x
  2. Step 2: Convert to fraction form
    18,653.20/27,973.28 = 5,502.08/x
  3. Step 3: Cross multiply
    18,653.20x = 27,973.28 × 5,502.08
  4. Step 4: Simplify right side
    18,653.20x = 153,911,224.42
  5. Step 5: Solve for x
    x = 153,911,224.42/18,653.20
  6. Step 6: Final answer
    x = 8,251.20

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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.