Home / 14,015.56-19,341.42-7,728.28

Finding the Fourth Proportional to 14,015.56, 19,341.42 and 7,728.28

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Solution

The fourth proportional to 14,015.56, 19,341.42 and 7,728.28 is: 10,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.56 : 19,341.42 = 7,728.28 : x
  2. Step 2: Convert to fraction form
    14,015.56/19,341.42 = 7,728.28/x
  3. Step 3: Cross multiply
    14,015.56x = 19,341.42 × 7,728.28
  4. Step 4: Simplify right side
    14,015.56x = 149,475,909.36
  5. Step 5: Solve for x
    x = 149,475,909.36/14,015.56
  6. Step 6: Final answer
    x = 10,665.00

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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.