Home / 13,586.28-20,363.01-9,879.31

Finding the Fourth Proportional to 13,586.28, 20,363.01 and 9,879.31

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Solution

The fourth proportional to 13,586.28, 20,363.01 and 9,879.31 is: 14,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.28 : 20,363.01 = 9,879.31 : x
  2. Step 2: Convert to fraction form
    13,586.28/20,363.01 = 9,879.31/x
  3. Step 3: Cross multiply
    13,586.28x = 20,363.01 × 9,879.31
  4. Step 4: Simplify right side
    13,586.28x = 201,172,488.32
  5. Step 5: Solve for x
    x = 201,172,488.32/13,586.28
  6. Step 6: Final answer
    x = 14,807.03

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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.