Home / 16,780.59-23,155.85-9,880.67

Finding the Fourth Proportional to 16,780.59, 23,155.85 and 9,880.67

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Solution

The fourth proportional to 16,780.59, 23,155.85 and 9,880.67 is: 13,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,780.59 : 23,155.85 = 9,880.67 : x
  2. Step 2: Convert to fraction form
    16,780.59/23,155.85 = 9,880.67/x
  3. Step 3: Cross multiply
    16,780.59x = 23,155.85 × 9,880.67
  4. Step 4: Simplify right side
    16,780.59x = 228,795,147.24
  5. Step 5: Solve for x
    x = 228,795,147.24/16,780.59
  6. Step 6: Final answer
    x = 13,634.51

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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.