Home / 15,925.89-21,977.01-8,852.70

Finding the Fourth Proportional to 15,925.89, 21,977.01 and 8,852.70

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Solution

The fourth proportional to 15,925.89, 21,977.01 and 8,852.70 is: 12,216.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.89 : 21,977.01 = 8,852.70 : x
  2. Step 2: Convert to fraction form
    15,925.89/21,977.01 = 8,852.70/x
  3. Step 3: Cross multiply
    15,925.89x = 21,977.01 × 8,852.70
  4. Step 4: Simplify right side
    15,925.89x = 194,555,876.43
  5. Step 5: Solve for x
    x = 194,555,876.43/15,925.89
  6. Step 6: Final answer
    x = 12,216.33

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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.