Home / 13,913.70-20,870.55-4,053.75

Finding the Fourth Proportional to 13,913.70, 20,870.55 and 4,053.75

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Solution

The fourth proportional to 13,913.70, 20,870.55 and 4,053.75 is: 6,080.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.70 : 20,870.55 = 4,053.75 : x
  2. Step 2: Convert to fraction form
    13,913.70/20,870.55 = 4,053.75/x
  3. Step 3: Cross multiply
    13,913.70x = 20,870.55 × 4,053.75
  4. Step 4: Simplify right side
    13,913.70x = 84,603,913.80
  5. Step 5: Solve for x
    x = 84,603,913.80/13,913.70
  6. Step 6: Final answer
    x = 6,080.62

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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.