Home / 13,911.39-20,870.50-4,050.76

Finding the Fourth Proportional to 13,911.39, 20,870.50 and 4,050.76

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Solution

The fourth proportional to 13,911.39, 20,870.50 and 4,050.76 is: 6,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.39 : 20,870.50 = 4,050.76 : x
  2. Step 2: Convert to fraction form
    13,911.39/20,870.50 = 4,050.76/x
  3. Step 3: Cross multiply
    13,911.39x = 20,870.50 × 4,050.76
  4. Step 4: Simplify right side
    13,911.39x = 84,541,282.23
  5. Step 5: Solve for x
    x = 84,541,282.23/13,911.39
  6. Step 6: Final answer
    x = 6,077.13

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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.