Home / 10,678.79-16,018.40-3,666.87

Finding the Fourth Proportional to 10,678.79, 16,018.40 and 3,666.87

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Solution

The fourth proportional to 10,678.79, 16,018.40 and 3,666.87 is: 5,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,678.79 : 16,018.40 = 3,666.87 : x
  2. Step 2: Convert to fraction form
    10,678.79/16,018.40 = 3,666.87/x
  3. Step 3: Cross multiply
    10,678.79x = 16,018.40 × 3,666.87
  4. Step 4: Simplify right side
    10,678.79x = 58,737,372.07
  5. Step 5: Solve for x
    x = 58,737,372.07/10,678.79
  6. Step 6: Final answer
    x = 5,500.38

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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.