Home / 18,722.58-25,830.88-12,011.84

Finding the Fourth Proportional to 18,722.58, 25,830.88 and 12,011.84

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Solution

The fourth proportional to 18,722.58, 25,830.88 and 12,011.84 is: 16,572.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.58 : 25,830.88 = 12,011.84 : x
  2. Step 2: Convert to fraction form
    18,722.58/25,830.88 = 12,011.84/x
  3. Step 3: Cross multiply
    18,722.58x = 25,830.88 × 12,011.84
  4. Step 4: Simplify right side
    18,722.58x = 310,276,397.62
  5. Step 5: Solve for x
    x = 310,276,397.62/18,722.58
  6. Step 6: Final answer
    x = 16,572.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.