Home / 15,292.50-21,103.69-8,923.47

Finding the Fourth Proportional to 15,292.50, 21,103.69 and 8,923.47

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Solution

The fourth proportional to 15,292.50, 21,103.69 and 8,923.47 is: 12,314.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,292.50 : 21,103.69 = 8,923.47 : x
  2. Step 2: Convert to fraction form
    15,292.50/21,103.69 = 8,923.47/x
  3. Step 3: Cross multiply
    15,292.50x = 21,103.69 × 8,923.47
  4. Step 4: Simplify right side
    15,292.50x = 188,318,144.60
  5. Step 5: Solve for x
    x = 188,318,144.60/15,292.50
  6. Step 6: Final answer
    x = 12,314.41

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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.