Home / 13,950.72-20,921.60-6,159.36

Finding the Fourth Proportional to 13,950.72, 20,921.60 and 6,159.36

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Solution

The fourth proportional to 13,950.72, 20,921.60 and 6,159.36 is: 9,237.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,950.72 : 20,921.60 = 6,159.36 : x
  2. Step 2: Convert to fraction form
    13,950.72/20,921.60 = 6,159.36/x
  3. Step 3: Cross multiply
    13,950.72x = 20,921.60 × 6,159.36
  4. Step 4: Simplify right side
    13,950.72x = 128,863,666.18
  5. Step 5: Solve for x
    x = 128,863,666.18/13,950.72
  6. Step 6: Final answer
    x = 9,237.06

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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.