Home / 10,687.18-16,030.77-2,789.67

Finding the Fourth Proportional to 10,687.18, 16,030.77 and 2,789.67

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Solution

The fourth proportional to 10,687.18, 16,030.77 and 2,789.67 is: 4,184.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.18 : 16,030.77 = 2,789.67 : x
  2. Step 2: Convert to fraction form
    10,687.18/16,030.77 = 2,789.67/x
  3. Step 3: Cross multiply
    10,687.18x = 16,030.77 × 2,789.67
  4. Step 4: Simplify right side
    10,687.18x = 44,720,631.34
  5. Step 5: Solve for x
    x = 44,720,631.34/10,687.18
  6. Step 6: Final answer
    x = 4,184.51

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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.