Home / 18,269.58-25,211.52-10,312.55

Finding the Fourth Proportional to 18,269.58, 25,211.52 and 10,312.55

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Solution

The fourth proportional to 18,269.58, 25,211.52 and 10,312.55 is: 14,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.58 : 25,211.52 = 10,312.55 : x
  2. Step 2: Convert to fraction form
    18,269.58/25,211.52 = 10,312.55/x
  3. Step 3: Cross multiply
    18,269.58x = 25,211.52 × 10,312.55
  4. Step 4: Simplify right side
    18,269.58x = 259,994,934.52
  5. Step 5: Solve for x
    x = 259,994,934.52/18,269.58
  6. Step 6: Final answer
    x = 14,231.03

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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.