Home / 15,925.69-21,977.13-8,755.75

Finding the Fourth Proportional to 15,925.69, 21,977.13 and 8,755.75

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Solution

The fourth proportional to 15,925.69, 21,977.13 and 8,755.75 is: 12,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.69 : 21,977.13 = 8,755.75 : x
  2. Step 2: Convert to fraction form
    15,925.69/21,977.13 = 8,755.75/x
  3. Step 3: Cross multiply
    15,925.69x = 21,977.13 × 8,755.75
  4. Step 4: Simplify right side
    15,925.69x = 192,426,256.00
  5. Step 5: Solve for x
    x = 192,426,256.00/15,925.69
  6. Step 6: Final answer
    x = 12,082.76

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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.