Home / 10,860.79-16,290.90-3,465.70

Finding the Fourth Proportional to 10,860.79, 16,290.90 and 3,465.70

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Solution

The fourth proportional to 10,860.79, 16,290.90 and 3,465.70 is: 5,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860.79 : 16,290.90 = 3,465.70 : x
  2. Step 2: Convert to fraction form
    10,860.79/16,290.90 = 3,465.70/x
  3. Step 3: Cross multiply
    10,860.79x = 16,290.90 × 3,465.70
  4. Step 4: Simplify right side
    10,860.79x = 56,459,372.13
  5. Step 5: Solve for x
    x = 56,459,372.13/10,860.79
  6. Step 6: Final answer
    x = 5,198.46

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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.