Home / 18,844.48-28,276.16-8,981.28

Finding the Fourth Proportional to 18,844.48, 28,276.16 and 8,981.28

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Solution

The fourth proportional to 18,844.48, 28,276.16 and 8,981.28 is: 13,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.48 : 28,276.16 = 8,981.28 : x
  2. Step 2: Convert to fraction form
    18,844.48/28,276.16 = 8,981.28/x
  3. Step 3: Cross multiply
    18,844.48x = 28,276.16 × 8,981.28
  4. Step 4: Simplify right side
    18,844.48x = 253,956,110.28
  5. Step 5: Solve for x
    x = 253,956,110.28/18,844.48
  6. Step 6: Final answer
    x = 13,476.42

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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.