Home / 9,139.40-13,709.43-4,695.87

Finding the Fourth Proportional to 9,139.40, 13,709.43 and 4,695.87

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Solution

The fourth proportional to 9,139.40, 13,709.43 and 4,695.87 is: 7,043.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.40 : 13,709.43 = 4,695.87 : x
  2. Step 2: Convert to fraction form
    9,139.40/13,709.43 = 4,695.87/x
  3. Step 3: Cross multiply
    9,139.40x = 13,709.43 × 4,695.87
  4. Step 4: Simplify right side
    9,139.40x = 64,377,701.05
  5. Step 5: Solve for x
    x = 64,377,701.05/9,139.40
  6. Step 6: Final answer
    x = 7,043.97

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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.