Home / 14,509.20-20,015.58-9,471.09

Finding the Fourth Proportional to 14,509.20, 20,015.58 and 9,471.09

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Solution

The fourth proportional to 14,509.20, 20,015.58 and 9,471.09 is: 13,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,509.20 : 20,015.58 = 9,471.09 : x
  2. Step 2: Convert to fraction form
    14,509.20/20,015.58 = 9,471.09/x
  3. Step 3: Cross multiply
    14,509.20x = 20,015.58 × 9,471.09
  4. Step 4: Simplify right side
    14,509.20x = 189,569,359.58
  5. Step 5: Solve for x
    x = 189,569,359.58/14,509.20
  6. Step 6: Final answer
    x = 13,065.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.