Home / 18,838.04-28,257.66-8,972.24

Finding the Fourth Proportional to 18,838.04, 28,257.66 and 8,972.24

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Solution

The fourth proportional to 18,838.04, 28,257.66 and 8,972.24 is: 13,458.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.04 : 28,257.66 = 8,972.24 : x
  2. Step 2: Convert to fraction form
    18,838.04/28,257.66 = 8,972.24/x
  3. Step 3: Cross multiply
    18,838.04x = 28,257.66 × 8,972.24
  4. Step 4: Simplify right side
    18,838.04x = 253,534,366.07
  5. Step 5: Solve for x
    x = 253,534,366.07/18,838.04
  6. Step 6: Final answer
    x = 13,458.64

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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.