Home / 15,780.45-23,671.94-5,250.09

Finding the Fourth Proportional to 15,780.45, 23,671.94 and 5,250.09

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Solution

The fourth proportional to 15,780.45, 23,671.94 and 5,250.09 is: 7,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.45 : 23,671.94 = 5,250.09 : x
  2. Step 2: Convert to fraction form
    15,780.45/23,671.94 = 5,250.09/x
  3. Step 3: Cross multiply
    15,780.45x = 23,671.94 × 5,250.09
  4. Step 4: Simplify right side
    15,780.45x = 124,279,815.47
  5. Step 5: Solve for x
    x = 124,279,815.47/15,780.45
  6. Step 6: Final answer
    x = 7,875.56

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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.