Home / 13,965.38-19,271.42-7,677.76

Finding the Fourth Proportional to 13,965.38, 19,271.42 and 7,677.76

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Solution

The fourth proportional to 13,965.38, 19,271.42 and 7,677.76 is: 10,594.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.38 : 19,271.42 = 7,677.76 : x
  2. Step 2: Convert to fraction form
    13,965.38/19,271.42 = 7,677.76/x
  3. Step 3: Cross multiply
    13,965.38x = 19,271.42 × 7,677.76
  4. Step 4: Simplify right side
    13,965.38x = 147,961,337.62
  5. Step 5: Solve for x
    x = 147,961,337.62/13,965.38
  6. Step 6: Final answer
    x = 10,594.87

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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.