Home / 13,870.70-20,807.09-4,010.05

Finding the Fourth Proportional to 13,870.70, 20,807.09 and 4,010.05

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Solution

The fourth proportional to 13,870.70, 20,807.09 and 4,010.05 is: 6,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870.70 : 20,807.09 = 4,010.05 : x
  2. Step 2: Convert to fraction form
    13,870.70/20,807.09 = 4,010.05/x
  3. Step 3: Cross multiply
    13,870.70x = 20,807.09 × 4,010.05
  4. Step 4: Simplify right side
    13,870.70x = 83,437,471.25
  5. Step 5: Solve for x
    x = 83,437,471.25/13,870.70
  6. Step 6: Final answer
    x = 6,015.38

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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.